/* roulang page: index */
:root{
  --brand:#0E8074;
  --brand-deep:#0A5F56;
  --brand-light:#E6F4F1;
  --brand-grad:linear-gradient(120deg,#0E8074 0%,#16A394 100%);
  --accent:#F0793A;
  --accent-hover:#D9642A;
  --ink:#16211F;
  --muted:#5A6B67;
  --border:#E2E8E6;
  --bg:#F6F9F8;
  --card:#FFFFFF;
  --warm:#FFF6EC;
  --dark:#16323A;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --pill:999px;
  --sh-sm:0 2px 6px rgba(16,33,31,.05);
  --sh-lg:0 20px 44px -22px rgba(16,33,31,.18);
  --s1:8px;--s2:16px;--s3:24px;--s4:32px;--s5:48px;--s6:64px;--s7:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto;background:var(--brand-light)}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-deep)}
h1,h2,h3,h4{margin:0 0 var(--s2);color:var(--ink);letter-spacing:-.01em;font-style:normal}
h1{font-size:clamp(30px,4.4vw,54px);font-weight:800;line-height:1.22}
h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3}
h3{font-size:22px;font-weight:600;line-height:1.4}
h4{font-size:19px;font-weight:600}
p{margin:0 0 var(--s2)}
ul,ol{margin:0 0 var(--s2);padding-left:1.15em}
li{margin-bottom:6px}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(14,128,116,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--tight{padding:56px 0}
.section--dark{background:var(--dark);color:#E8F1EF}
.section--warm{background:var(--warm)}
.section--dark h2,.section--dark h3{color:#fff}
.sec-head{max-width:760px;margin-bottom:var(--s5)}
.sec-head .eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--brand);background:var(--brand-light);border-radius:var(--pill);padding:5px 14px;margin-bottom:var(--s2)}
.sec-head p{color:var(--muted);margin:0}
.section--dark .sec-head p{color:#A9C4BF}
.eyebrow-line{width:56px;height:4px;border-radius:var(--pill);background:var(--brand-grad);margin-bottom:var(--s2)}

/* ============ 顶部导航 ============ */
.site-header{position:relative;z-index:60;background:#fff;border-bottom:1px solid var(--border)}
.nav-top{display:flex;align-items:center;gap:var(--s3);min-height:72px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{width:40px;height:40px;border-radius:13px;background:var(--brand-grad);position:relative;flex:0 0 auto;box-shadow:var(--sh-sm)}
.brand-mark::before{content:"";position:absolute;inset:11px 11px 13px 11px;border:3px solid #fff;border-radius:50% 50% 50% 50%/60% 60% 40% 40%;opacity:.92}
.brand-mark::after{content:"";position:absolute;left:15px;right:15px;bottom:9px;height:3px;border-radius:3px;background:#fff;opacity:.85}
.brand-text{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
.brand-text span{color:var(--brand)}
.nav-search{flex:1 1 auto;max-width:420px;position:relative}
.nav-search input{width:100%;height:44px;border-radius:var(--pill);border:1px solid var(--border);background:#F4F8F7;padding:0 44px 0 18px;font-size:15px;color:var(--ink);transition:border-color .2s,background .2s}
.nav-search input::placeholder{color:#93A6A1}
.nav-search input:focus{outline:none;border-color:var(--brand);background:#fff}
.nav-search i{position:absolute;right:16px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:15px;pointer-events:none}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;border:none;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;text-align:center}
.btn i{font-size:14px}
.btn--primary{background:var(--accent);color:#fff;height:52px;padding:0 28px;border-radius:var(--pill);box-shadow:0 10px 22px -12px rgba(240,121,58,.85)}
.btn--primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 16px 28px -14px rgba(217,100,42,.9)}
.btn--primary:active{transform:translateY(1px)}
.btn--grad{background:var(--brand-grad);color:#fff;height:52px;padding:0 28px;border-radius:var(--pill);box-shadow:0 12px 26px -16px rgba(14,128,116,.95)}
.btn--grad:hover{color:#fff;transform:translateY(-1px);background:linear-gradient(120deg,#0A5F56 0%,#0E8074 100%)}
.btn--outline{background:#fff;color:var(--brand);border:1.5px solid var(--brand);height:52px;padding:0 26px;border-radius:var(--pill)}
.btn--outline:hover{background:var(--brand-light);color:var(--brand-deep);transform:translateY(-1px)}
.btn--ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5);height:52px;padding:0 26px;border-radius:var(--pill)}
.btn--ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn--sm{height:44px;padding:0 20px;font-size:14px}
.btn--xs{height:36px;padding:0 16px;font-size:13px}
.btn--pill-sm{height:40px;padding:0 20px;border-radius:var(--pill);font-size:14px;background:var(--accent);color:#fff}
.btn--pill-sm:hover{background:var(--accent-hover);color:#fff}
.btn--link{background:none;border:none;color:var(--brand);font-weight:600;padding:0;height:auto}
.btn--link i{transition:transform .2s ease}
.btn--link:hover i{transform:translateX(3px)}
.btn--link:hover{color:var(--brand-deep)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:#fff;color:var(--ink);font-size:17px}
.channel-bar{position:sticky;top:0;z-index:55;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);box-shadow:0 6px 18px -16px rgba(16,33,31,.4)}
@supports not (backdrop-filter:blur(8px)){.channel-bar{background:#fff}}
.channel-scroll{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;padding:10px 0;scroll-behavior:smooth}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-item{flex:0 0 auto;display:inline-flex;align-items:center;gap:7px;height:40px;padding:0 18px;border-radius:var(--pill);font-size:14.5px;font-weight:600;color:var(--muted);background:#F1F6F5;border:1px solid transparent;white-space:nowrap;transition:all .2s ease}
.channel-item:hover{color:var(--brand-deep);background:var(--brand-light)}
.channel-item[aria-current="page"],.channel-item.is-active{background:var(--brand-grad);color:#fff;box-shadow:0 10px 20px -14px rgba(14,128,116,.9)}
.channel-item i{font-size:13px}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,#F1F7F6 100%)}
.hero::after{content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle at 30% 30%,rgba(22,163,148,.22),rgba(22,163,148,0) 68%)}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.02fr .98fr;gap:var(--s5);align-items:center;padding:72px 0 76px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--border);color:var(--brand-deep);font-size:13.5px;font-weight:600;border-radius:var(--pill);padding:7px 16px;box-shadow:var(--sh-sm);margin-bottom:var(--s3)}
.hero-tag i{color:var(--accent)}
.hero h1{margin-bottom:var(--s3)}
.hero h1 em{font-style:normal;color:var(--brand);position:relative}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:10px;border-radius:var(--pill);background:rgba(240,121,58,.18);z-index:-1}
.hero-sub{font-size:18px;color:var(--muted);max-width:520px;margin-bottom:var(--s4)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:var(--s5)}
.hero-shots{position:relative}
.hero-shots .frame{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-lg);border:1px solid var(--border);background:#fff}
.hero-shots .frame img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-shots .float-card{position:absolute;left:-18px;bottom:-24px;background:#fff;border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh-lg);border:1px solid var(--border);display:flex;align-items:center;gap:12px;max-width:270px}
.hero-shots .float-card .ic{width:40px;height:40px;border-radius:12px;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;font-size:17px}
.hero-shots .float-card strong{display:block;font-size:15px}
.hero-shots .float-card small{color:var(--muted);font-size:12.5px}
.hero-band{position:absolute;left:0;right:0;top:0;height:6px;background:var(--brand-grad)}

/* 数据徽章 */
.badge-row{display:flex;flex-wrap:wrap;gap:12px}
.badge{display:inline-flex;align-items:baseline;gap:6px;background:var(--brand-light);border-radius:var(--pill);padding:8px 16px;border:1px solid rgba(14,128,116,.12)}
.badge b{font-size:19px;font-weight:800;color:var(--brand-deep);letter-spacing:-.02em}
.badge span{font-size:13px;color:var(--muted)}
.badge--grad{background:var(--brand-grad);border-color:transparent}
.badge--grad b,.badge--grad span{color:#fff}
.badge--grad span{opacity:.86}

/* ============ 下载按钮组 ============ */
.dl-bar{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-lg);padding:22px 26px;display:grid;grid-template-columns:1.15fr auto auto auto;gap:20px;align-items:center}
.dl-bar h3{margin:0 0 4px;font-size:19px}
.dl-bar p{margin:0;color:var(--muted);font-size:14px}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.qr-btn{display:inline-flex;align-items:center;gap:10px;height:52px;padding:0 20px;border-radius:var(--pill);border:1.5px dashed rgba(14,128,116,.45);background:#F7FBFA;color:var(--brand-deep);font-weight:600;font-size:14.5px;cursor:pointer}
.qr-btn:hover{background:var(--brand-light)}

/* ============ 平台价值 ============ */
.value-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:var(--s3)}
.value-large{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:var(--s4);box-shadow:var(--sh-sm);display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.value-large::after{content:"";position:absolute;right:-60px;bottom:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(14,128,116,.14),transparent 70%)}
.value-large h3{font-size:24px}
.value-large p{color:var(--muted);max-width:440px}
.value-stack{display:grid;grid-template-rows:1fr 1fr;gap:var(--s3)}
.value-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:var(--s3);box-shadow:var(--sh-sm);display:flex;gap:16px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.value-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:rgba(14,128,116,.4)}
.value-card .ic{flex:0 0 auto;width:46px;height:46px;border-radius:14px;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;font-size:19px}
.value-card h4{margin-bottom:6px}
.value-card p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.7}
.value-points{list-style:none;padding:0;margin:var(--s3) 0 0;display:grid;gap:10px}
.value-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--muted)}
.value-points i{color:var(--brand);margin-top:4px}

/* ============ 功能截图轮播 ============ */
.shot-rail{display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 24px 26px 24px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.shot-rail::-webkit-scrollbar{display:none}
.shot-card{flex:0 0 auto;width:min(560px,80vw);scroll-snap-align:center;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);transition:transform .25s ease,box-shadow .25s ease}
.shot-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.shot-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.shot-card figcaption{padding:18px 22px}
.shot-card figcaption h4{margin-bottom:4px}
.shot-card figcaption p{margin:0;color:var(--muted);font-size:14.5px}
.rail-controls{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.rail-controls .thumb-row{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;flex:1 1 auto}
.rail-controls .thumb-row::-webkit-scrollbar{display:none}
.thumb{width:88px;height:56px;border-radius:var(--r-sm);overflow:hidden;border:2px solid transparent;cursor:pointer;padding:0;background:var(--brand-light);flex:0 0 auto}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb.is-active{border-color:var(--brand)}
.ctrl-btn{width:46px;height:46px;border-radius:50%;border:1px solid var(--border);background:#fff;color:var(--ink);cursor:pointer;transition:all .2s ease}
.ctrl-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}

/* ============ 系统要求 ============ */
.req-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s3)}
.req-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:var(--s3);box-shadow:var(--sh-sm);transition:transform .25s ease,box-shadow .25s ease}
.req-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.req-card .head{display:flex;align-items:center;gap:12px;padding-bottom:16px;border-bottom:1px dashed var(--border);margin-bottom:16px}
.req-card .head .ic{width:44px;height:44px;border-radius:13px;background:var(--brand-grad);color:#fff;display:grid;place-items:center;font-size:18px}
.req-card .head h3{margin:0;font-size:19px}
.req-card dl{margin:0;display:grid;gap:12px}
.req-card dt{font-size:13px;color:var(--muted);margin-bottom:2px}
.req-card dd{margin:0;font-size:15px;font-weight:600;color:var(--ink)}
.req-card dd small{font-weight:500;color:var(--muted)}

/* ============ 信任徽章带 ============ */
.trust-strip{background:var(--brand-light);border-top:1px solid rgba(14,128,116,.14);border-bottom:1px solid rgba(14,128,116,.14)}
.trust-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s3);padding:34px 0}
.trust-item{text-align:left}
.trust-item b{display:block;font-size:30px;font-weight:800;color:var(--brand-deep);letter-spacing:-.02em;line-height:1.2}
.trust-item span{font-size:13.5px;color:var(--muted)}
.trust-item small{display:block;font-size:12px;color:#7B908C;margin-top:2px}

/* ============ 评价墙 ============ */
.review-wall{column-count:3;column-gap:var(--s3)}
.review-card{break-inside:avoid;background:#fff;border:1px solid var(--border);border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-sm);margin-bottom:var(--s3);transition:transform .25s ease,box-shadow .25s ease}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{width:42px;height:42px;border-radius:50%;background:var(--brand-grad);color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px}
.review-head strong{display:block;font-size:15px}
.review-head small{color:var(--muted);font-size:12.5px}
.stars{color:var(--accent);font-size:13px;margin-bottom:8px;letter-spacing:2px}
.review-card p{margin:0;font-size:14.5px;color:#33413E;line-height:1.75}
.review-tag{display:inline-block;margin-top:12px;font-size:12px;color:var(--brand-deep);background:var(--brand-light);border-radius:var(--pill);padding:4px 12px}

/* ============ 最新信息 ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--s3);flex-wrap:wrap;margin-bottom:var(--s4)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s3)}
.news-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-sm);display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:rgba(14,128,116,.4)}
.news-card .cover{aspect-ratio:16/9;overflow:hidden;background:var(--brand-light)}
.news-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .cover img{transform:scale(1.03)}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.pill{display:inline-block;font-size:12.5px;font-weight:600;color:var(--brand-deep);background:var(--brand-light);border-radius:var(--pill);padding:4px 12px;margin-bottom:10px}
.news-body h3{font-size:17.5px;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a{color:var(--ink)}
.news-body h3 a:hover{color:var(--brand)}
.news-body .sum{font-size:14px;color:var(--muted);line-height:1.7;margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--muted);border-top:1px solid var(--border);padding-top:12px}
.empty-state{grid-column:1/-1;background:#fff;border:1px dashed var(--border);border-radius:var(--r-md);padding:var(--s5) var(--s3);text-align:center}
.empty-state .ic{width:64px;height:64px;margin:0 auto 14px;border-radius:20px;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;font-size:24px}
.empty-state p{color:var(--muted);margin-bottom:16px}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:1.55fr 1fr;gap:var(--s4);align-items:start}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-sm)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:none;border:none;text-align:left;font-size:17.5px;font-weight:600;color:var(--ink);padding:20px 22px;cursor:pointer}
.faq-q .sign{flex:0 0 auto;width:28px;height:28px;border-radius:50%;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;font-size:15px;transition:transform .2s ease,background .2s ease,color .2s ease}
.faq-item.is-open{border-color:rgba(14,128,116,.4)}
.faq-item.is-open .faq-q .sign{background:var(--brand);color:#fff;transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a .inner{padding:0 22px 20px;color:var(--muted);line-height:1.8;font-size:15px}
.help-card{background:var(--dark);color:#DDE9E6;border-radius:var(--r-lg);padding:var(--s4);box-shadow:var(--sh-lg)}
.help-card h3{color:#fff;font-size:20px}
.help-card p{color:#A9C4BF;font-size:14.5px}
.help-card ul{list-style:none;padding:0;margin:0 0 var(--s3);display:grid;gap:10px;font-size:14.5px}
.help-card ul i{color:#4FC3B4;margin-right:8px}

/* ============ 底部 CTA ============ */
.cta-band{position:relative;overflow:hidden;background:var(--dark);border-radius:var(--r-lg);padding:var(--s5) var(--s4);color:#fff}
.cta-band::after{content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(22,163,148,.5),transparent 68%)}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr auto;gap:var(--s4);align-items:center}
.cta-inner h2{color:#fff;margin-bottom:10px}
.cta-inner p{color:#A9C4BF;margin:0;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#B9CFCA;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:var(--s4);padding:64px 0 40px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.site-footer a{color:#B9CFCA}
.site-footer a:hover{color:#4FC3B4}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;color:#8FA9A4;line-height:1.8;max-width:320px}
.footer-list{list-style:none;padding:0;margin:0;display:grid;gap:10px;font-size:14.5px}
.footer-sub{display:flex;gap:10px;margin-top:14px}
.footer-sub input{flex:1 1 auto;height:48px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14px}
.footer-sub input::placeholder{color:#7E9793}
.footer-sub input:focus{outline:none;border-color:#4FC3B4;background:rgba(255,255,255,.1)}
.footer-sub .btn--primary{height:48px;padding:0 20px;font-size:14px}
.form-hint{font-size:12.5px;color:#7E9793;margin-top:10px;min-height:18px}
.form-hint.is-ok{color:#4FC3B4}
.form-hint.is-err{color:#FF8A73}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8FA9A4}
.footer-bottom nav{display:flex;gap:18px;flex-wrap:wrap}

/* ============ 弹层 ============ */
.modal-mask{position:fixed;inset:0;background:rgba(12,30,29,.55);display:none;align-items:center;justify-content:center;z-index:120;padding:20px}
.modal-mask.is-open{display:flex}
.modal-box{background:#fff;border-radius:var(--r-lg);padding:var(--s4);max-width:380px;width:100%;text-align:center;box-shadow:var(--sh-lg)}
.modal-box .qr{width:170px;height:170px;margin:0 auto var(--s2);border-radius:var(--r-md);background:var(--brand-light);display:grid;place-items:center;color:var(--brand);font-size:52px}
.modal-box h3{font-size:20px}
.modal-box p{color:var(--muted);font-size:14.5px}
.drawer-mask{position:fixed;inset:0;background:rgba(12,30,29,.5);opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:100}
.drawer-mask.is-open{opacity:1;pointer-events:auto}

/* 移动端固定下载条 */
.mobile-dl{display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;background:rgba(255,255,255,.97);border-top:1px solid var(--border);box-shadow:0 -8px 24px -18px rgba(16,33,31,.5);padding:10px 16px;gap:10px;align-items:center}
.mobile-dl .btn{flex:1 1 auto}

/* 滚动淡入 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .3s ease,transform .3s ease}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .news-grid{grid-template-columns:repeat(3,1fr)}
  .review-wall{column-count:3}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .hero-grid{grid-template-columns:1fr;padding:48px 0 56px;gap:var(--s4)}
  .hero-sub{max-width:none}
  .nav-search{display:none}
  .nav-toggle{display:inline-grid;place-items:center}
  .value-grid{grid-template-columns:1fr}
  .value-stack{grid-template-rows:auto auto}
  .req-grid{grid-template-columns:repeat(2,1fr)}
  .trust-inner{grid-template-columns:repeat(2,1fr);gap:var(--s3)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .review-wall{column-count:2}
  .faq-layout{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--s4)}
  .dl-bar{grid-template-columns:1fr;gap:16px}
  .dl-actions{justify-content:flex-start}
  .hero-shots .float-card{left:12px;bottom:-18px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .channel-item{height:38px;padding:0 15px;font-size:14px}
  .news-grid{grid-template-columns:1fr}
  .req-grid{grid-template-columns:1fr}
  .review-wall{column-count:2}
  .mobile-dl{display:flex}
  body{padding-bottom:76px}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px}
  .brand-text{font-size:17px}
  .hero-cta .btn,.dl-actions .btn{width:100%}
  .dl-actions{flex-direction:column;align-items:stretch}
  .qr-btn{justify-content:center}
  .cta-actions .btn{width:100%}
}
@media (max-width:519px){
  h1{font-size:30px}
  .brand-mark{width:36px;height:36px}
  .review-wall{column-count:1}
  .trust-inner{grid-template-columns:1fr}
  .hero-shots .float-card{position:static;margin-top:14px;max-width:none}
  .shot-card{width:86vw}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --brand:#0E8074;
  --brand-deep:#0A5F56;
  --brand-light:#E6F4F1;
  --brand-soft:#F2FAF8;
  --accent:#F0793A;
  --accent-hover:#D9642A;
  --ink:#16323A;
  --text:#16211F;
  --muted:#5A6B67;
  --line:#E2E8E6;
  --bg:#F6F9F8;
  --card:#FFFFFF;
  --warm:#FFF6EC;
  --grad:linear-gradient(96deg,#0E8074 0%,#16A394 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 2px 6px rgba(16,33,31,.05);
  --sh-2:0 20px 44px -22px rgba(16,33,31,.18);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::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:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
h1,h2,h3,h4{font-family:var(--font-cn);color:var(--text);line-height:1.3;font-style:normal;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;color:inherit;}
:focus-visible{outline:3px solid rgba(14,128,116,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ 顶栏 ============ */
.site-header{
  background:var(--card);
  border-bottom:1px solid var(--line);
  position:relative;
  z-index:60;
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--grad);
  position:relative;
  box-shadow:0 6px 14px -8px rgba(14,128,116,.9);
}
.brand-mark::after{
  content:"";position:absolute;left:9px;top:9px;width:16px;height:16px;
  border-radius:50% 50% 50% 4px;background:rgba(255,255,255,.92);
}
.brand-text{font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--text);}
.brand-text em{font-style:normal;color:var(--brand);}
.header-search{
  flex:1 1 auto;
  max-width:340px;
  display:flex;align-items:center;gap:8px;
  background:var(--brand-soft);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:0 6px 0 16px;
  height:44px;
}
.header-search i{color:var(--muted);font-size:14px;}
.header-search input{
  flex:1;border:0;background:transparent;height:42px;color:var(--text);
}
.header-search input:focus{outline:0;}
.header-search input::placeholder{color:#93A6A1;}
.header-search button{
  height:34px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;
}
.header-search button:hover{background:var(--brand-deep);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;flex:none;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);color:var(--text);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:var(--r-pill);
  font-weight:600;font-size:16px;line-height:1;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px -14px rgba(14,128,116,.95);}
.btn--primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(14,128,116,.95);}
.btn--accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px -14px rgba(240,121,58,.9);}
.btn--accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);}
.btn--ghost{background:#fff;color:var(--brand-deep);border:1.5px solid rgba(14,128,116,.35);}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-1px);}
.btn--sm{height:44px;padding:0 22px;font-size:15px;}
.btn:active{transform:translateY(1px);}

/* ============ 频道行 ============ */
.channel-bar{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.channel-scroll{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;
  padding:10px 0;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel-item{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 18px;border-radius:var(--r-pill);
  color:var(--text);font-size:15px;font-weight:500;white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.channel-item i{font-size:13px;color:var(--brand);}
.channel-item:hover{background:var(--brand-light);color:var(--brand-deep);}
.channel-item.is-active{background:var(--grad);color:#fff;}
.channel-item.is-active i{color:#fff;}

/* ============ 内页小 Hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background-color:var(--brand-light);
  background-image:linear-gradient(96deg,rgba(230,244,241,.96) 0%,rgba(242,250,248,.86) 52%,rgba(255,246,236,.9) 100%),
                   url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;right:-80px;top:-60px;width:320px;height:320px;
  border-radius:50%;background:var(--grad);opacity:.14;filter:blur(2px);
}
.page-hero-inner{position:relative;z-index:2;padding:64px 0 56px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:18px;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand-deep);}
.crumbs span.sep{color:#B6C4C1;}
.crumbs .current{color:var(--brand-deep);font-weight:600;}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;letter-spacing:-.01em;
  max-width:820px;
}
.page-hero .lede{
  margin-top:18px;max-width:720px;font-size:17px;color:var(--muted);line-height:1.8;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.badge{
  display:inline-flex;align-items:baseline;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:8px 16px;box-shadow:var(--sh-1);font-size:13px;color:var(--muted);
}
.badge b{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:18px;color:var(--brand-deep);font-weight:700;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-deep);background:var(--brand-light);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:16px;
}
.section-head h2{font-size:clamp(26px,3vw,34px);font-weight:700;letter-spacing:-.01em;}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}

/* ============ 主体两栏 ============ */
.main-grid{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.toc{
  position:sticky;top:84px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px 20px;
  box-shadow:var(--sh-1);
}
.toc h2{font-size:15px;font-weight:700;letter-spacing:.04em;color:var(--brand-deep);margin-bottom:14px;}
.toc ol{display:flex;flex-direction:column;gap:4px;}
.toc a{
  display:flex;gap:10px;align-items:flex-start;
  padding:9px 10px;border-radius:var(--r-sm);
  color:var(--muted);font-size:14px;line-height:1.55;
  transition:background .2s ease,color .2s ease;
}
.toc a b{font-family:var(--font-num);color:#A9BBB7;font-weight:600;font-size:13px;}
.toc a:hover{background:var(--brand-soft);color:var(--brand-deep);}
.toc a:hover b{color:var(--brand);}
.toc-note{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--muted);}

.feature-stack{display:flex;flex-direction:column;gap:28px;}
.feature-block{scroll-margin-top:96px;}
.compare-card{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,128,116,.4);}
.compare-card.is-reverse .compare-text{order:2;}
.compare-card.is-reverse .compare-media{order:1;}
.compare-text{padding:34px 34px 32px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-light);color:var(--brand-deep);
  border-radius:var(--r-pill);padding:5px 14px;
  font-size:13px;font-weight:600;
}
.compare-text h3{margin-top:16px;font-size:23px;font-weight:600;}
.compare-text p{margin-top:12px;color:var(--muted);font-size:15.5px;}
.point-list{margin-top:20px;display:flex;flex-direction:column;gap:10px;}
.point-list li{display:flex;gap:10px;font-size:15px;color:var(--text);}
.point-list li i{color:var(--brand);font-size:14px;margin-top:6px;flex:none;}
.compare-media{
  background:var(--brand-soft);
  min-height:260px;
  display:flex;align-items:center;justify-content:center;
  padding:22px;
}
.compare-media img{
  width:100%;height:100%;max-height:320px;object-fit:cover;
  border-radius:var(--r-md);
  box-shadow:var(--sh-2);
  background:#E6F4F1;
}

/* ============ 适用场景 ============ */
.scene-band{background:var(--warm);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.scene-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;
}
.scene-card{
  background:var(--card);border-radius:var(--r-lg);padding:28px;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  display:flex;gap:18px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.scene-icon{
  width:52px;height:52px;flex:none;border-radius:16px;
  background:var(--brand-light);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;font-size:20px;
}
.scene-card.is-accent .scene-icon{background:rgba(240,121,58,.14);color:var(--accent-hover);}
.scene-card h3{font-size:18px;font-weight:600;}
.scene-card p{margin-top:8px;color:var(--muted);font-size:15px;}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step;}
.flow-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 22px;position:relative;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.flow-item:hover{transform:translateY(-4px);border-color:rgba(14,128,116,.4);box-shadow:var(--sh-2);}
.flow-num{
  width:38px;height:38px;border-radius:12px;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:700;font-size:16px;
}
.flow-item h3{margin-top:16px;font-size:17px;font-weight:600;}
.flow-item p{margin-top:8px;color:var(--muted);font-size:14.5px;}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{border-color:rgba(14,128,116,.45);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:18px;font-weight:600;color:var(--text);
}
.faq-q i{color:var(--brand);font-size:15px;transition:transform .2s ease;flex:none;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 24px 22px;color:var(--muted);font-size:15.5px;line-height:1.8;}
.help-card{
  background:var(--ink);color:#DCE9E6;border-radius:var(--r-lg);padding:30px;
  position:relative;overflow:hidden;
}
.help-card::after{
  content:"";position:absolute;right:-50px;bottom:-60px;width:180px;height:180px;
  border-radius:50%;background:var(--grad);opacity:.28;
}
.help-card h3{color:#fff;font-size:20px;font-weight:600;position:relative;z-index:2;}
.help-card p{margin-top:12px;font-size:14.5px;line-height:1.8;color:#A9C2BD;position:relative;z-index:2;}
.help-card .btn{margin-top:22px;position:relative;z-index:2;}

/* ============ CTA ============ */
.cta-band{
  background:var(--ink);
  border-radius:32px;
  padding:56px 48px;
  position:relative;overflow:hidden;
  color:#fff;
}
.cta-band::before{
  content:"";position:absolute;left:-90px;top:-110px;width:340px;height:340px;border-radius:50%;
  background:var(--grad);opacity:.35;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;bottom:-120px;width:280px;height:280px;border-radius:50%;
  background:rgba(240,121,58,.28);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;}
.cta-inner h2{color:#fff;font-size:clamp(24px,2.8vw,32px);font-weight:700;}
.cta-inner p{margin-top:12px;color:#A9C2BD;font-size:15.5px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.btn--outline{background:transparent;border:1.5px solid rgba(255,255,255,.42);color:#fff;}
.btn--outline:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff;transform:translateY(-1px);}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#A9C2BD;margin-top:88px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px;}
.footer-brand .brand-text{color:#fff;font-size:19px;font-weight:800;display:inline-block;margin-bottom:14px;}
.footer-brand .brand-text em{font-style:normal;color:#4FC3B4;}
.footer-brand p{font-size:14px;line-height:1.8;color:#8FA9A4;}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list a{color:#A9C2BD;font-size:14px;}
.footer-list a:hover{color:#4FC3B4;}
.footer-sub{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap;}
.footer-sub input{
  flex:1 1 150px;height:46px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);
  color:#fff;padding:0 14px;
}
.footer-sub input::placeholder{color:#7E958F;}
.footer-sub input:focus{outline:0;border-color:var(--brand);}
.footer-sub .btn{height:46px;padding:0 20px;font-size:15px;}
.form-hint{font-size:13px;color:#4FC3B4;min-height:20px;margin-top:8px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#7E958F;
}
.footer-bottom nav{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom a{color:#7E958F;}
.footer-bottom a:hover{color:#4FC3B4;}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(320px,86vw);
  background:#fff;z-index:200;transform:translateX(102%);
  transition:transform .3s ease;padding:22px;overflow-y:auto;
  box-shadow:-20px 0 50px -30px rgba(16,33,31,.5);
}
.drawer.is-open{transform:translateX(0);}
.drawer-close{width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;}
.drawer nav{display:flex;flex-direction:column;gap:6px;margin-top:22px;}
.drawer nav a{padding:12px 14px;border-radius:var(--r-sm);color:var(--text);font-size:15px;}
.drawer nav a:hover{background:var(--brand-soft);color:var(--brand-deep);}
.drawer .btn{width:100%;margin-top:20px;}
.backdrop{position:fixed;inset:0;background:rgba(16,33,31,.45);z-index:150;opacity:0;pointer-events:none;transition:opacity .3s ease;}
.backdrop.is-open{opacity:1;pointer-events:auto;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .header-search{max-width:220px;}
  .main-grid{grid-template-columns:1fr;gap:28px;}
  .toc{position:static;}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .faq-wrap{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .header-inner{min-height:56px;gap:12px;}
  .header-search{display:none;}
  .header-actions .btn{display:none;}
  .menu-toggle{display:flex;align-items:center;justify-content:center;}
  .brand-text{font-size:18px;}
  .page-hero-inner{padding:40px 0 36px;}
  .page-hero .lede{font-size:15.5px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .compare-card{grid-template-columns:1fr;}
  .compare-card.is-reverse .compare-text{order:1;}
  .compare-card.is-reverse .compare-media{order:2;}
  .compare-text{padding:26px 22px;}
  .scene-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-a-inner{padding:0 18px 18px;}
  .cta-band{padding:36px 24px;border-radius:24px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{margin-top:56px;padding-top:48px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:479px){
  .hero-badges .badge{width:100%;justify-content:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --c-primary:#0E8074;
  --c-primary-deep:#0A5F56;
  --c-primary-light:#E6F4F1;
  --c-accent:#F0793A;
  --c-accent-hover:#D9642A;
  --c-ink:#16323A;
  --c-text:#16211F;
  --c-text-2:#5A6B67;
  --c-border:#E2E8E6;
  --c-bg:#F6F9F8;
  --c-card:#FFFFFF;
  --c-warm:#FFF6EC;
  --grad-brand:linear-gradient(135deg,#0E8074 0%,#16A394 100%);
  --r-lg:24px;--r-md:18px;--r-sm:12px;--r-pill:999px;
  --sh-1:0 2px 6px rgba(16,33,31,.05);
  --sh-2:0 20px 44px -22px rgba(16,33,31,.18);
  --s-8:8px;--s-16:16px;--s-24:24px;--s-32:32px;--s-48:48px;--s-64:64px;--s-96:96px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-deep);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:-.01em;font-style:normal;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.show-for-sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-pill);cursor:pointer;
  font-size:15px;font-weight:600;height:52px;padding:0 28px;line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn--primary{background:var(--c-accent);color:#fff;box-shadow:0 10px 24px -12px rgba(240,121,58,.7);}
.btn--primary:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(240,121,58,.8);}
.btn--grad{background:var(--grad-brand);color:#fff;box-shadow:0 12px 26px -14px rgba(14,128,116,.75);}
.btn--grad:hover{color:#fff;transform:translateY(-1px);}
.btn--outline{background:#fff;color:var(--c-primary);border-color:rgba(14,128,116,.4);}
.btn--outline:hover{border-color:var(--c-primary);background:var(--c-primary-light);color:var(--c-primary-deep);transform:translateY(-1px);}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn--ghost:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.btn--lg{height:56px;padding:0 32px;font-size:16px;}
.btn:active{transform:translateY(1px);}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(14,128,116,.35);outline-offset:2px;}
.btn--text{height:auto;padding:0;background:none;color:var(--c-primary);font-weight:600;}
.btn--text i{transition:transform .2s ease;}
.btn--text:hover i{transform:translateX(3px);}

/* ---------- 顶栏 ---------- */
.site-header{position:relative;z-index:80;background:#fff;}
.topbar{border-bottom:1px solid var(--c-border);}
.topbar-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;
  box-shadow:0 8px 18px -10px rgba(14,128,116,.85);
}
.brand-text{font-size:19px;font-weight:800;color:var(--c-ink);letter-spacing:-.02em;}
.brand-accent{color:var(--c-primary);}
.topbar-search{
  flex:1;max-width:420px;display:flex;align-items:center;gap:10px;
  background:var(--c-bg);border:1px solid var(--c-border);border-radius:var(--r-pill);
  height:44px;padding:0 18px;color:var(--c-text-2);
  transition:border-color .2s ease,background-color .2s ease;
}
.topbar-search:focus-within{border-color:var(--c-primary);background:#fff;}
.topbar-search input{flex:1;border:0;background:none;height:100%;font-size:14px;color:var(--c-text);}
.topbar-search input::placeholder{color:#93A5A1;}
.topbar-search input:focus{outline:none;}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--c-border);
  background:#fff;color:var(--c-ink);font-size:17px;cursor:pointer;
}
.menu-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* ---------- 频道行 ---------- */
.channel-bar{
  position:sticky;top:0;z-index:70;background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--c-border);
}
.channel-scroll{display:flex;align-items:center;gap:8px;height:56px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;-webkit-overflow-scrolling:touch;}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel-item{
  flex:none;display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--c-text-2);white-space:nowrap;
  border:1px solid transparent;transition:all .2s ease;
}
.channel-item i{font-size:13px;color:#8FA6A2;}
.channel-item:hover{background:var(--c-primary-light);color:var(--c-primary-deep);}
.channel-item:hover i{color:var(--c-primary);}
.channel-item.is-active{background:var(--grad-brand);color:#fff;box-shadow:0 8px 18px -12px rgba(14,128,116,.9);}
.channel-item.is-active i{color:rgba(255,255,255,.85);}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(16,33,31,.45);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:90;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86%;max-width:340px;background:#fff;z-index:95;
  transform:translateX(102%);transition:transform .28s ease;padding:20px;overflow-y:auto;
  box-shadow:-24px 0 60px -30px rgba(16,33,31,.5);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--c-border);background:#fff;color:var(--c-ink);cursor:pointer;}
.drawer-search{display:flex;align-items:center;gap:10px;background:var(--c-bg);border:1px solid var(--c-border);border-radius:var(--r-sm);height:48px;padding:0 14px;margin-bottom:20px;}
.drawer-search input{border:0;background:none;flex:1;height:100%;font-size:14px;}
.drawer-search input:focus{outline:none;}
.drawer-title{font-size:12px;font-weight:700;letter-spacing:.12em;color:#93A5A1;text-transform:uppercase;margin:0 0 10px;}
.drawer-nav a{display:flex;align-items:center;gap:10px;padding:13px 12px;border-radius:var(--r-sm);color:var(--c-text);font-weight:600;font-size:15px;}
.drawer-nav a:hover{background:var(--c-primary-light);color:var(--c-primary-deep);}
.drawer-nav a.is-active{background:var(--c-primary-light);color:var(--c-primary-deep);}
.drawer-cta{margin-top:22px;display:grid;gap:10px;}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;overflow:hidden;background:var(--c-ink) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding:56px 0 64px;color:#fff;
}
.article-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,95,86,.92) 0%,rgba(22,50,58,.93) 100%);}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:20px;}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb .sep{color:rgba(255,255,255,.4);}
.breadcrumb .current{color:rgba(255,255,255,.95);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.pill{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--c-primary-light);color:var(--c-primary-deep);font-size:13px;font-weight:600;
}
.pill--glass{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.3);}
.article-hero h1{
  font-size:clamp(28px,4vw,46px);line-height:1.3;font-weight:800;color:#fff;margin:18px 0 20px;max-width:22ch;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:20px;font-size:14px;color:rgba(255,255,255,.78);}
.article-meta span{display:inline-flex;align-items:center;gap:8px;}
.article-meta i{color:#7FD3C6;}
.share-group{display:flex;align-items:center;gap:10px;margin-left:auto;}
.share-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.32);background:rgba(255,255,255,.1);
  color:#fff;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:all .2s ease;
}
.share-btn:hover{background:#fff;color:var(--c-primary-deep);transform:translateY(-1px);}

/* ---------- 文章主区 ---------- */
.article-layout{padding:56px 0 24px;}
.article-main{min-width:0;}
.article-card{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:40px 44px;
}
.article-lead{
  background:var(--c-primary-light);border-left:4px solid var(--c-primary);border-radius:var(--r-md);
  padding:18px 22px;color:var(--c-primary-deep);font-size:15.5px;margin:0 0 28px;
}
.article-body{max-width:100%;font-size:16px;line-height:1.85;color:var(--c-text);}
.article-body > *{max-width:820px;}
.article-body h2{
  position:relative;font-size:27px;font-weight:700;line-height:1.4;margin:44px 0 18px;padding-left:16px;
  scroll-margin-top:88px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad-brand);
}
.article-body h3{font-size:21px;font-weight:600;margin:32px 0 14px;scroll-margin-top:88px;}
.article-body h4{font-size:18px;font-weight:600;margin:26px 0 12px;}
.article-body p{margin:0 0 1.25em;color:#22302D;}
.article-body ul,.article-body ol{margin:0 0 1.35em;padding-left:2px;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px;color:#22302D;}
.article-body ul li::before{content:"";position:absolute;left:2px;top:12px;width:8px;height:8px;border-radius:3px;background:var(--c-primary);opacity:.7;}
.article-body ol{counter-reset:li;}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:li;}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:4px;width:20px;height:20px;border-radius:50%;
  background:var(--c-primary-light);color:var(--c-primary-deep);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  background:var(--c-primary-light);border-left:4px solid var(--c-primary);border-radius:var(--r-md);
  padding:18px 24px;margin:24px 0;color:var(--c-primary-deep);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-md);margin:24px 0;box-shadow:var(--sh-1);}
.article-body a{border-bottom:1px solid rgba(14,128,116,.35);}
.article-body a:hover{border-bottom-color:var(--c-primary);}
.article-body table{width:100%;border-collapse:collapse;font-size:14.5px;margin:24px 0;background:#fff;}
.article-body th,.article-body td{border:1px solid var(--c-border);padding:12px 14px;text-align:left;}
.article-body th{background:var(--c-primary-light);color:var(--c-primary-deep);font-weight:600;}
.article-body code{font-family:"SFMono-Regular",Consolas,monospace;background:var(--c-bg);border:1px solid var(--c-border);border-radius:6px;padding:2px 6px;font-size:14px;}
.article-body hr{border:0;border-top:1px solid var(--c-border);margin:32px 0;}
.article-body strong{color:var(--c-ink);}

.empty-state{
  text-align:center;padding:64px 24px;background:var(--c-warm);border:1px dashed #F3D3B6;border-radius:var(--r-lg);
}
.empty-state .es-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;background:#fff;color:var(--c-accent);
  display:flex;align-items:center;justify-content:center;font-size:24px;box-shadow:var(--sh-1);
}
.empty-state h3{font-size:20px;margin-bottom:10px;}
.empty-state p{color:var(--c-text-2);font-size:14.5px;margin-bottom:20px;}

/* ---------- 文末 ---------- */
.article-foot{margin-top:32px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);background:var(--c-bg);border:1px solid var(--c-border);font-size:13px;color:var(--c-text-2);}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary-deep);background:var(--c-primary-light);}
.back-links{display:flex;flex-wrap:wrap;gap:18px;font-size:14px;font-weight:600;}

/* ---------- 侧栏 ---------- */
.article-side{min-width:0;}
.side-block{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:22px;margin-bottom:20px;
}
.side-block h3{font-size:16px;font-weight:700;display:flex;align-items:center;gap:8px;margin-bottom:14px;}
.side-block h3 i{color:var(--c-primary);font-size:14px;}
.toc-list a{
  display:block;padding:9px 12px;border-left:2px solid var(--c-border);font-size:14px;color:var(--c-text-2);
  border-radius:0 8px 8px 0;transition:all .2s ease;
}
.toc-list a:hover{background:var(--c-primary-light);color:var(--c-primary-deep);border-left-color:var(--c-primary);}
.toc-list a.is-current{background:var(--c-primary-light);color:var(--c-primary-deep);border-left-color:var(--c-primary);font-weight:600;}
.hot-list li + li{margin-top:12px;padding-top:12px;border-top:1px solid var(--c-border);}
.hot-list a{display:block;font-size:14px;font-weight:600;color:var(--c-text);line-height:1.55;}
.hot-list a:hover{color:var(--c-primary);}
.hot-list span{display:block;font-size:12.5px;color:var(--c-text-2);margin-top:4px;}
.side-cta{
  background:var(--grad-brand);border-radius:var(--r-md);padding:24px;color:#fff;box-shadow:var(--sh-2);
}
.side-cta h3{color:#fff;font-size:17px;margin-bottom:10px;}
.side-cta p{font-size:13.5px;color:rgba(255,255,255,.85);margin-bottom:18px;line-height:1.7;}
.side-cta .btn{width:100%;background:#fff;color:var(--c-primary-deep);}
.side-cta .btn:hover{background:#fff;color:var(--c-primary);}
.side-sticky{position:sticky;top:80px;}

/* ---------- 相关推荐 ---------- */
.related{padding:24px 0 8px;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;}
.section-head p{color:var(--c-text-2);font-size:14.5px;margin:6px 0 0;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,128,116,.4);}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-light);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;font-weight:600;line-height:1.5;}
.card-body p{font-size:14px;color:var(--c-text-2);line-height:1.7;margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-2);margin-top:auto;padding-top:12px;border-top:1px solid var(--c-border);}
.card-meta i{color:var(--c-primary);transition:transform .2s ease;}
.card:hover .card-meta i{transform:translateX(3px);}

/* ---------- 底部 CTA ---------- */
.bottom-cta{padding:88px 0;margin-top:56px;}
.cta-panel{
  position:relative;overflow:hidden;background:var(--c-ink);border-radius:32px;padding:56px;
  color:#fff;box-shadow:var(--sh-2);
}
.cta-panel::before{
  content:"";position:absolute;width:420px;height:420px;right:-120px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,163,148,.55) 0%,rgba(22,163,148,0) 70%);
}
.cta-panel::after{
  content:"";position:absolute;width:320px;height:320px;left:-100px;bottom:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,121,58,.35) 0%,rgba(240,121,58,0) 70%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;}
.cta-inner h2{color:#fff;font-size:clamp(24px,3vw,34px);max-width:20ch;line-height:1.35;}
.cta-inner p{color:rgba(255,255,255,.82);font-size:15px;max-width:44ch;margin:12px 0 0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#C8D8D5;padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-text{display:block;font-size:20px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.8;color:#93A9A5;max-width:34ch;}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-list li{margin-bottom:10px;}
.footer-list a{color:#A9BFBB;font-size:14px;}
.footer-list a:hover{color:#fff;}
.footer-sub{display:flex;gap:10px;margin-top:14px;}
.footer-sub input{
  flex:1;min-width:0;height:48px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14px;
}
.footer-sub input::placeholder{color:#7F9691;}
.footer-sub input:focus{border-color:#4FC3B4;outline:none;background:rgba(255,255,255,.1);}
.form-hint{font-size:13px;margin:10px 0 0;color:#7FD3C6;min-height:18px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;font-size:13.5px;color:#8FA9A4;
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:20px;}
.footer-bottom a{color:#8FA9A4;}
.footer-bottom a:hover{color:#fff;}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;border:0;cursor:pointer;
  background:#fff;color:var(--c-primary-deep);box-shadow:var(--sh-2);font-size:16px;z-index:60;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease,transform .2s ease;
}
.to-top.is-show{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-2px);}

/* ---------- 动效 ---------- */
.reveal-up{opacity:0;transform:translateY(16px);transition:opacity .4s ease-out,transform .4s ease-out;}
.reveal-up.is-visible{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .topbar-search{display:none;}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-card{padding:32px 28px;}
  .article-side{margin-top:32px;}
  .side-sticky{position:static;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .topbar-inner{height:60px;gap:12px;}
  .brand-text{font-size:17px;}
  .channel-bar{position:sticky;top:0;}
  .channel-scroll{height:52px;}
  .article-hero{padding:40px 0 44px;}
  .article-hero h1{font-size:28px;}
  .share-group{margin-left:0;}
  .article-layout{padding:36px 0 16px;}
  .article-card{padding:24px 18px;border-radius:var(--r-md);}
  .article-body{font-size:15.5px;}
  .article-body h2{font-size:22px;margin:34px 0 14px;}
  .article-body h3{font-size:19px;}
  .card-grid{grid-template-columns:1fr;}
  .bottom-cta{padding:56px 0;}
  .cta-panel{padding:32px 22px;border-radius:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:52px 0 24px;}
  .footer-sub{flex-wrap:wrap;}
  .footer-sub .btn{width:100%;}
  .to-top{right:14px;bottom:18px;}
  .breadcrumb .current{max-width:100%;white-space:normal;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
  .reveal-up{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --brand:#0E8074;
  --brand-dark:#0A5F56;
  --brand-light:#E6F4F1;
  --accent:#F0793A;
  --accent-dark:#D9642A;
  --ink:#16211F;
  --muted:#5A6B67;
  --line:#E2E8E6;
  --bg:#F6F9F8;
  --card:#FFFFFF;
  --warm:#FFF6EC;
  --dark:#16323A;
  --grad:linear-gradient(100deg,#0E8074,#16A394);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow-sm:0 2px 6px rgba(16,33,31,.05);
  --shadow-lg:0 20px 44px -22px rgba(16,33,31,.18);
  --space:8px;
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}

body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto;display:block;background:#E6F4F1}
a{color:var(--brand-dark);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent-dark)}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.28;letter-spacing:-.01em;color:var(--ink);font-style:normal}
p{margin:0}
dl,dd,dt{margin:0}

h1{font-size:clamp(30px,4.2vw,52px);font-weight:800}
h2{font-size:clamp(24px,2.6vw,34px);font-weight:700}
h3{font-size:clamp(20px,2vw,24px);font-weight:600}
h4{font-size:18px;font-weight:600}

.num{font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;font-variant-numeric:tabular-nums}

.container{max-width:1200px;margin:0 auto;padding:0 24px}

:focus-visible{outline:3px solid rgba(14,128,116,.35);outline-offset:2px;border-radius:6px}

section[id]{scroll-margin-top:96px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:999px;border:1px solid transparent;
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn--sm{height:44px;padding:0 22px;font-size:15px}
.btn--xs{height:36px;padding:0 16px;font-size:14px}
.btn--primary{background:var(--accent);color:#fff;box-shadow:0 12px 24px -14px rgba(240,121,58,.85)}
.btn--primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(217,100,42,.9)}
.btn--primary:active{transform:translateY(1px)}
.btn--outline{background:#fff;color:var(--brand-dark);border-color:rgba(14,128,116,.45)}
.btn--outline:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.btn--soft{background:var(--brand-light);color:var(--brand-dark)}
.btn--soft:hover{background:#d8ece8;color:var(--brand-dark)}
.btn--text{height:auto;padding:0;background:transparent;border:0;color:var(--brand-dark);font-weight:600}
.btn--text i{transition:transform .18s ease}
.btn--text:hover i{transform:translateX(3px)}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- 顶栏 ---------- */
.site-header{position:relative;z-index:60}
.topbar{background:#fff;border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 10px 20px -12px rgba(14,128,116,.9);
}
.brand-mark::before{
  content:"";width:15px;height:15px;border-radius:5px;background:#fff;
  transform:rotate(45deg);box-shadow:-8px 8px 0 -2px rgba(255,255,255,.55);
}
.brand-text{font-size:20px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.brand-text span{color:var(--brand)}

.nav-search{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 16px;background:var(--bg);border:1px solid var(--line);border-radius:999px;
}
.nav-search i{color:var(--muted);font-size:14px}
.nav-search input{
  flex:1;border:0;background:transparent;outline:none;font-size:15px;color:var(--ink);height:100%;
}
.nav-search input::placeholder{color:#93A29E}

.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:18px;cursor:pointer;
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand-dark)}

/* ---------- 频道条 ---------- */
.channel-bar{
  position:sticky;top:0;z-index:55;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.channel-scroll{display:flex;gap:8px;overflow-x:auto;padding:10px 0;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-item{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;
  padding:0 18px;border-radius:999px;white-space:nowrap;
  font-size:15px;color:var(--muted);border:1px solid transparent;
  transition:color .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.channel-item i{font-size:13px}
.channel-item:hover{color:var(--brand-dark);background:var(--brand-light)}
.channel-item.is-active{background:var(--grad);color:#fff;box-shadow:0 10px 22px -14px rgba(14,128,116,.9)}
.channel-item.is-active:hover{color:#fff}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,33,31,.45);opacity:0;visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;z-index:90;
  transform:translateX(105%);transition:transform .26s ease;
  padding:20px;overflow-y:auto;box-shadow:-20px 0 40px -30px rgba(16,33,31,.5);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;font-size:18px;cursor:pointer;color:var(--ink)}
.drawer-link{
  display:flex;align-items:center;gap:10px;min-height:48px;padding:0 14px;border-radius:12px;
  color:var(--ink);font-size:15px;font-weight:500;
}
.drawer-link:hover{background:var(--brand-light);color:var(--brand-dark)}
.drawer-link.is-active{background:var(--brand-light);color:var(--brand-dark);font-weight:700}
.drawer-sub{margin:18px 0 10px;font-size:13px;color:var(--muted);letter-spacing:.04em}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;padding:56px 0 60px;
  background-color:#E6F4F1;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center right;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(246,249,248,.97) 0%,rgba(230,244,241,.88) 52%,rgba(255,246,236,.72) 100%);
}
.page-hero .hero-inner{position:relative;z-index:1;max-width:900px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:20px;flex-wrap:wrap}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand-dark)}
.crumbs span.sep{color:#B9C6C3}
.crumbs .current{color:var(--brand-dark);font-weight:600}

.pill{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;
  font-size:13px;font-weight:600;background:var(--brand-light);color:var(--brand-dark);
}
.pill--warm{background:var(--warm);color:var(--accent-dark)}
.pill--solid{background:var(--grad);color:#fff}

.page-hero h1{margin:18px 0 0}
.page-hero h1 .h1-sub{display:block;font-size:clamp(17px,1.7vw,22px);font-weight:600;color:var(--brand-dark);margin-top:12px;letter-spacing:0}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.8;color:#3D4F4B;max-width:760px}

.stat-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.stat-badge{
  display:inline-flex;align-items:baseline;gap:8px;padding:10px 16px;
  background:#fff;border:1px solid var(--line);border-radius:999px;box-shadow:var(--shadow-sm);
}
.stat-badge b{font-size:19px;font-weight:700;color:var(--brand-dark)}
.stat-badge span{font-size:13px;color:var(--muted)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--warm{background:var(--warm)}
.section--white{background:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px}

/* ---------- 步骤时间线 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.steps::before{
  content:"";position:absolute;left:6%;right:6%;top:50px;height:2px;z-index:0;
  background:linear-gradient(90deg,rgba(14,128,116,.45),rgba(240,121,58,.45));
}
.step{
  position:relative;z-index:1;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:28px 24px 30px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(14,128,116,.4)}
.step-num{
  width:44px;height:44px;border-radius:999px;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;
  font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;
  margin-bottom:18px;box-shadow:0 12px 22px -14px rgba(14,128,116,.95);
}
.step h3{font-size:19px;margin-bottom:10px}
.step p{font-size:15px;color:var(--muted);line-height:1.75}

/* ---------- 图文交替宽卡 ---------- */
.wide-card{
  display:grid;grid-template-columns:1.05fr .95fr;gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);margin-bottom:28px;
}
.wide-card--reverse .wide-copy{order:2}
.wide-copy{padding:38px 40px}
.wide-copy h3{margin-bottom:14px}
.wide-copy p{color:var(--muted);font-size:15px;line-height:1.8}
.wide-copy ul{margin-top:18px;display:grid;gap:10px}
.wide-copy li{position:relative;padding-left:22px;font-size:15px;color:#3D4F4B}
.wide-copy li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;
  background:var(--brand-light);border:2px solid var(--brand);
}
.wide-media{position:relative;min-height:280px;background:#E6F4F1}
.wide-media img{width:100%;height:100%;object-fit:cover}

/* ---------- 系统要求卡 ---------- */
.req-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 26px 22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.req-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(14,128,116,.4)}
.req-head{display:flex;align-items:center;gap:12px;margin-bottom:22px}
.req-icon{
  width:46px;height:46px;border-radius:14px;background:var(--brand-light);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-size:19px;flex:0 0 auto;
}
.req-head h3{font-size:19px}
.req-head small{display:block;font-size:13px;color:var(--muted);font-weight:400}
.req-list dt{font-size:13px;color:var(--muted);letter-spacing:.02em}
.req-list dd{
  font-size:15px;font-weight:600;color:var(--ink);padding-bottom:12px;margin-bottom:12px;
  border-bottom:1px dashed var(--line);font-variant-numeric:tabular-nums;
}
.req-list dd:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}

/* ---------- 下载按钮组 ---------- */
.download-bar{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
  box-shadow:var(--shadow-lg);
}
.download-bar .dl-copy{max-width:520px}
.download-bar h3{font-size:20px;margin-bottom:8px}
.download-bar p{font-size:14px;color:var(--muted)}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.dl-band{
  border:1px dashed rgba(14,128,116,.45);background:transparent;box-shadow:none;
  padding:24px 26px;border-radius:var(--radius-md);
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.is-open{border-color:rgba(14,128,116,.4);box-shadow:var(--shadow-sm)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);min-height:44px;
}
.faq-q:hover{color:var(--brand-dark)}
.faq-icon{
  width:28px;height:28px;border-radius:999px;background:var(--brand-light);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-size:15px;flex:0 0 auto;
  transition:transform .2s ease,background-color .2s ease,color .2s ease;
}
.faq-item.is-open .faq-icon{background:var(--grad);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--muted)}

.help-card{
  background:var(--dark);color:#fff;border-radius:var(--radius-lg);padding:30px 26px;
  height:100%;display:flex;flex-direction:column;gap:14px;
}
.help-card h3{color:#fff;font-size:20px}
.help-card p{font-size:14px;line-height:1.8;color:#A9C3BE}
.help-card .btn{align-self:flex-start;margin-top:6px}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--dark);color:#fff;
  border-radius:var(--radius-lg);padding:52px 48px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 12% 18%,rgba(22,163,148,.5),transparent 58%),
    radial-gradient(circle at 88% 82%,rgba(240,121,58,.35),transparent 55%);
}
.cta-band-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:#BCD2CD;font-size:15px;max-width:620px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C7D8D4;margin-top:88px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-brand .brand-text{display:block;font-size:20px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:#8FA9A4;max-width:340px}
.footer-list{display:grid;gap:10px}
.footer-list a{color:#C7D8D4;font-size:14px}
.footer-list a:hover{color:#fff}
.footer-sub{margin-top:16px;display:flex;gap:10px}
.footer-sub input{
  flex:1;height:46px;padding:0 16px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;font-size:14px;outline:none;
}
.footer-sub input::placeholder{color:#7E9791}
.footer-sub input:focus{border-color:#4FC3B4;box-shadow:0 0 0 2px rgba(79,195,180,.25)}
.form-hint{font-size:13px;margin-top:10px;min-height:20px;color:#9FB8B3}
.form-hint.is-error{color:#F2937B}
.form-hint.is-ok{color:#7ED9C9}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:#8FA9A4;
}
.footer-bottom nav{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{color:#8FA9A4}
.footer-bottom a:hover{color:#fff}

/* ---------- 弹层 ---------- */
#pkgModal{
  position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);
  width:min(560px,calc(100vw - 32px));background:#fff;border-radius:var(--radius-lg);
  padding:32px 30px;border:0;box-shadow:var(--shadow-lg);z-index:120;
}
#pkgModal.is-open{display:block}
#pkgModal h3{margin-bottom:14px}
#pkgModal p{font-size:15px;color:var(--muted);line-height:1.85;margin-bottom:12px}
#pkgModal .modal-actions{margin-top:20px;display:flex;justify-content:flex-end}
.modal-mask{position:fixed;inset:0;background:rgba(16,33,31,.5);z-index:110;opacity:0;visibility:hidden;transition:opacity .2s ease}
.modal-mask.is-open{opacity:1;visibility:visible}

/* ---------- 动效 ---------- */
.reveal-up{opacity:0;transform:translateY(16px);transition:opacity .3s ease,transform .3s ease}
.reveal-up.is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:32px}
}

@media (max-width:1023px){
  .nav-search{display:none}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
  .section{padding:72px 0}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps::before{display:none}
  .wide-card{grid-template-columns:1fr}
  .wide-card--reverse .wide-copy{order:0}
  .wide-media{min-height:240px;order:-1}
  .wide-copy{padding:30px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:44px 32px}
}

@media (max-width:767px){
  .container{padding:0 16px}
  body{font-size:15.5px}
  .topbar-inner{min-height:60px;gap:12px}
  .brand-text{font-size:18px}
  .brand-mark{width:34px;height:34px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .section-head{margin-bottom:32px}
  .page-hero{padding:40px 0 44px}
  .hero-lead{font-size:15.5px}
  .stat-badge b{font-size:17px}
  .steps{grid-template-columns:1fr}
  .step{padding:24px 20px 26px}
  .step-num{margin-bottom:14px}
  .faq-q{padding:18px;font-size:16px}
  .faq-a-inner{padding:0 18px 20px}
  .download-bar{padding:22px}
  .dl-actions{width:100%}
  .dl-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-sub{flex-direction:column}
  .footer-sub .btn{width:100%}
  .cta-band{padding:36px 22px;border-radius:var(--radius-md)}
  .wide-copy{padding:26px 20px}
  .wide-media{min-height:200px}
}

@media (max-width:479px){
  .stat-badges{gap:8px}
  .stat-badge{padding:8px 12px}
  .btn{width:100%;padding:0 20px}
  .btn--sm,.btn--xs{width:100%}
  .brand-text{font-size:17px}
  .channel-item{padding:0 14px;font-size:14px}
}

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

/* roulang page: category3 */
:root{
  --c-primary:#0E8074;
  --c-primary-dark:#0A5F56;
  --c-primary-light:#E6F4F1;
  --c-accent:#F0793A;
  --c-accent-dark:#D9642A;
  --c-ink:#16323A;
  --c-text:#16211F;
  --c-text-2:#5A6B67;
  --c-border:#E2E8E6;
  --c-bg:#F6F9F8;
  --c-card:#FFFFFF;
  --c-warm:#FFF6EC;
  --grad:linear-gradient(100deg,#0E8074 0%,#16A394 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 2px 6px rgba(16,33,31,.05);
  --sh-2:0 20px 44px -22px rgba(16,33,31,.18);
  --container:1200px;
  --sp:8px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.01em;}
p{margin:0;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:3px solid rgba(14,128,116,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
section{scroll-margin-top:110px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;border-radius:var(--r-pill);cursor:pointer;
  font-size:15px;font-weight:600;line-height:1;letter-spacing:0;
  padding:0 26px;height:52px;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--c-accent);color:#fff;box-shadow:0 10px 22px -12px rgba(240,121,58,.8);}
.btn--primary:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(217,100,42,.85);}
.btn--grad{background:var(--grad);color:#fff;box-shadow:0 12px 24px -14px rgba(14,128,116,.9);}
.btn--grad:hover{color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(14,128,116,.9);}
.btn--ghost{background:transparent;color:var(--c-primary-dark);border:1.5px solid var(--c-primary);}
.btn--ghost:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}
.btn--light{background:rgba(255,255,255,.14);color:#fff;border:1.5px solid rgba(255,255,255,.5);}
.btn--light:hover{background:rgba(255,255,255,.24);color:#fff;}
.btn--sm{height:44px;padding:0 20px;font-size:14px;}
.btn--xs{height:36px;padding:0 16px;font-size:13px;}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--c-primary);}
.btn-link i{transition:transform .2s ease;}
.btn-link:hover i{transform:translateX(3px);}

/* ---------- 顶栏与导航 ---------- */
.site-header{position:relative;z-index:60;background:#fff;border-bottom:1px solid var(--c-border);}
.topbar{background:#fff;}
.topbar-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  box-shadow:0 8px 18px -10px rgba(14,128,116,.9);
}
.brand-mark span{display:block;height:3px;border-radius:2px;background:rgba(255,255,255,.92);}
.brand-mark span:nth-child(1){width:16px;}
.brand-mark span:nth-child(2){width:11px;}
.brand-mark span:nth-child(3){width:6px;}
.brand-text{font-size:19px;font-weight:800;color:var(--c-ink);letter-spacing:-.02em;white-space:nowrap;}
.brand-accent{color:var(--c-primary);}
.header-search{
  position:relative;flex:1 1 auto;max-width:400px;margin-left:auto;
  display:flex;align-items:center;
}
.header-search i{position:absolute;left:16px;color:var(--c-text-2);font-size:14px;}
.header-search input{
  width:100%;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--c-border);background:var(--c-bg);
  padding:0 18px 0 42px;color:var(--c-text);
  transition:border-color .2s ease,background .2s ease;
}
.header-search input::placeholder{color:#93A5A1;}
.header-search input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(14,128,116,.14);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-border);
  background:#fff;color:var(--c-ink);font-size:17px;cursor:pointer;
}
.nav-toggle:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}
.channel-bar{
  position:sticky;top:0;z-index:55;
  background:rgba(246,249,248,.94);
  backdrop-filter:blur(8px);
  border-top:1px solid var(--c-border);
  border-bottom:1px solid var(--c-border);
}
.channel-scroll{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  padding:10px 0;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel-item{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;color:var(--c-text-2);
  background:#fff;border:1px solid var(--c-border);
  white-space:nowrap;transition:all .2s ease;
}
.channel-item i{font-size:13px;opacity:.85;}
.channel-item:hover{color:var(--c-primary-dark);border-color:rgba(14,128,116,.4);background:var(--c-primary-light);}
.channel-item.is-active{
  background:var(--grad);color:#fff;border-color:transparent;
  box-shadow:0 10px 20px -14px rgba(14,128,116,.95);
}
.channel-item.is-active:hover{color:#fff;}

/* ---------- 页头 Hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--grad);color:#fff;padding:76px 0 64px;}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.16;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,121,58,.45),rgba(240,121,58,0) 70%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.page-hero__tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);
  font-size:13.5px;font-weight:600;letter-spacing:.02em;
}
.page-hero h1{
  font-size:48px;font-weight:800;margin:22px 0 18px;letter-spacing:-.015em;
}
.page-hero p.lead{
  font-size:17px;line-height:1.8;color:rgba(255,255,255,.9);max-width:620px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.stat-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;}
.stat{
  display:flex;flex-direction:column;gap:2px;
  padding:12px 20px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);
  min-width:132px;
}
.stat__num{font-size:19px;font-weight:800;font-variant-numeric:tabular-nums;font-feature-settings:"tnum";letter-spacing:-.01em;}
.stat__label{font-size:12.5px;color:rgba(255,255,255,.82);line-height:1.4;}
.hero-card{
  background:#fff;border-radius:var(--r-lg);padding:22px;color:var(--c-text);
  box-shadow:0 34px 60px -34px rgba(6,40,36,.6);
}
.hero-card img{border-radius:var(--r-md);aspect-ratio:16/9;object-fit:cover;background:var(--c-primary-light);}
.hero-card h3{font-size:18px;margin:18px 0 8px;}
.hero-card p{font-size:14.5px;color:var(--c-text-2);}
.hero-card ul{margin-top:14px;display:grid;gap:8px;}
.hero-card li{display:flex;gap:10px;font-size:14.5px;color:var(--c-text-2);}
.hero-card li i{color:var(--c-primary);margin-top:5px;font-size:12px;}

/* ---------- 通用板块 ---------- */
.section{padding:92px 0;}
.section--tight{padding:64px 0;}
.section--warm{background:var(--c-warm);}
.section--white{background:#fff;}
.section-head{max-width:760px;margin-bottom:48px;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--c-primary);background:var(--c-primary-light);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:16px;
}
.section-head h2{font-size:34px;font-weight:700;}
.section-head p{margin-top:14px;font-size:16.5px;color:var(--c-text-2);line-height:1.8;}

/* ---------- 更新节奏（左大右小） ---------- */
.rhythm-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch;}
.rhythm-main{
  background:#fff;border-radius:var(--r-lg);padding:32px;
  border:1px solid var(--c-border);box-shadow:var(--sh-1);
  display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;
}
.rhythm-main img{border-radius:var(--r-md);aspect-ratio:3/2;object-fit:cover;background:var(--c-primary-light);}
.rhythm-main h3{font-size:23px;margin-bottom:12px;}
.rhythm-main p{color:var(--c-text-2);font-size:15.5px;}
.rhythm-side{display:grid;gap:24px;}
.rhythm-card{
  background:#fff;border-radius:var(--r-md);padding:26px;border:1px solid var(--c-border);
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rhythm-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,128,116,.4);}
.rhythm-card .ico{
  width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-light);color:var(--c-primary-dark);font-size:17px;margin-bottom:14px;
}
.rhythm-card h4{font-size:18px;margin-bottom:8px;}
.rhythm-card p{font-size:14.5px;color:var(--c-text-2);}

/* ---------- 时间线 ---------- */
.timeline{position:relative;display:grid;gap:20px;}
.tl-item{
  display:grid;grid-template-columns:132px 1fr;gap:26px;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tl-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,128,116,.4);}
.tl-item.is-featured{border-color:rgba(240,121,58,.45);background:linear-gradient(180deg,#FFF6EC 0%,#fff 55%);}
.tl-ver{display:flex;flex-direction:column;gap:8px;border-right:1px solid var(--c-border);padding-right:20px;}
.tl-ver .num{font-size:26px;font-weight:800;color:var(--c-primary-dark);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.tl-ver .date{font-size:13.5px;color:var(--c-text-2);font-variant-numeric:tabular-nums;}
.tl-body h3{font-size:20px;margin-bottom:12px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.tl-body ul{display:grid;gap:8px;}
.tl-body li{position:relative;padding-left:20px;font-size:15px;color:var(--c-text-2);}
.tl-body li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;
  background:var(--c-primary);opacity:.85;
}
.pill{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-light);color:var(--c-primary-dark);
  font-size:12.5px;font-weight:700;letter-spacing:.02em;
}
.pill--accent{background:rgba(240,121,58,.16);color:var(--c-accent-dark);}

/* ---------- 运行条件条带 ---------- */
.req-band{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);}
.req-row{
  display:grid;grid-template-columns:180px 1fr;gap:24px;align-items:center;
  padding:22px 28px;border-bottom:1px solid var(--c-border);
}
.req-row:last-child{border-bottom:none;}
.req-row:hover{background:var(--c-primary-light);}
.req-label{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--c-ink);font-size:16px;}
.req-label i{color:var(--c-primary);}
.req-val{color:var(--c-text-2);font-size:15px;font-variant-numeric:tabular-nums;}

/* ---------- 答疑主题（1 大 3 小） ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.topic-wide{
  grid-column:1 / -1;
  display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center;
  background:var(--c-ink);color:#fff;border-radius:var(--r-lg);padding:36px;
  overflow:hidden;
}
.topic-wide h3{font-size:24px;margin-bottom:12px;}
.topic-wide p{color:rgba(255,255,255,.78);font-size:15.5px;margin-bottom:18px;}
.topic-wide ul{display:grid;gap:10px;}
.topic-wide li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.86);}
.topic-wide li i{color:#4FC3B4;margin-top:6px;font-size:12px;}
.topic-wide img{border-radius:var(--r-md);aspect-ratio:4/3;object-fit:cover;background:#1E4A52;}
.topic-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,128,116,.4);}
.topic-card h4{font-size:18px;margin-bottom:10px;}
.topic-card p{font-size:14.5px;color:var(--c-text-2);margin-bottom:16px;}
.topic-card ul{display:grid;gap:8px;}
.topic-card li{position:relative;padding-left:18px;font-size:14.5px;color:var(--c-text-2);}
.topic-card li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--c-accent);}

/* ---------- 反馈区 ---------- */
.feedback-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:32px;align-items:start;}
.checkcard{
  background:var(--c-ink);color:#fff;border-radius:var(--r-lg);padding:34px;
}
.checkcard h3{font-size:22px;margin-bottom:14px;}
.checkcard > p{color:rgba(255,255,255,.75);font-size:15px;margin-bottom:22px;}
.checkcard ol{display:grid;gap:14px;counter-reset:ck;}
.checkcard li{
  display:flex;gap:14px;font-size:15px;color:rgba(255,255,255,.88);
}
.checkcard li span{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(79,195,180,.22);color:#7FE0D2;font-size:13px;font-weight:700;
}
.form-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:34px;box-shadow:var(--sh-1);
}
.form-card h3{font-size:22px;margin-bottom:8px;}
.form-card > p{font-size:14.5px;color:var(--c-text-2);margin-bottom:24px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;border-radius:var(--r-sm);border:1px solid var(--c-border);
  background:var(--c-bg);padding:13px 16px;color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:120px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(14,128,116,.14);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-hint{font-size:13.5px;margin-top:14px;min-height:20px;}
.form-hint.ok{color:var(--c-primary-dark);}
.form-hint.err{color:#D9544B;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1.55fr .85fr;gap:32px;align-items:start;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);transition:border-color .2s ease;
}
.faq-item.is-open{border-color:rgba(14,128,116,.45);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:none;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.6;
}
.faq-q:hover{color:var(--c-primary-dark);}
.faq-q i{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-light);color:var(--c-primary-dark);font-size:12px;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item.is-open .faq-q i{transform:rotate(45deg);background:var(--c-primary);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 24px 22px;font-size:15px;color:var(--c-text-2);line-height:1.85;}
.help-card{
  background:var(--c-warm);border:1px solid rgba(240,121,58,.28);
  border-radius:var(--r-lg);padding:30px;
}
.help-card img{border-radius:var(--r-md);aspect-ratio:3/2;object-fit:cover;margin-bottom:18px;background:var(--c-primary-light);}
.help-card h3{font-size:20px;margin-bottom:10px;}
.help-card p{font-size:14.5px;color:var(--c-text-2);margin-bottom:20px;}

/* ---------- 底部 CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--c-ink);color:#fff;padding:72px 0;}
.cta-band::before{
  content:"";position:absolute;left:-80px;bottom:-160px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,163,148,.55),rgba(22,163,148,0) 70%);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-120px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,121,58,.42),rgba(240,121,58,0) 70%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;}
.cta-inner h2{font-size:32px;margin-bottom:14px;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#C7D8D4;padding:68px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:36px;}
.footer-brand .brand-text{color:#fff;font-size:20px;display:block;margin-bottom:16px;}
.footer-brand p{font-size:14.5px;line-height:1.8;color:#8FA9A4;}
.site-footer h4{font-size:16px;color:#fff;margin-bottom:16px;}
.footer-list{display:grid;gap:10px;}
.footer-list a{color:#AFC5C0;font-size:14.5px;}
.footer-list a:hover{color:#4FC3B4;}
.footer-sub{display:flex;gap:10px;margin-top:16px;}
.footer-sub input{
  flex:1 1 auto;min-width:0;height:44px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);
  color:#fff;padding:0 14px;
}
.footer-sub input::placeholder{color:#7C9490;}
.footer-sub input:focus{outline:none;border-color:#4FC3B4;box-shadow:0 0 0 3px rgba(79,195,180,.22);}
.footer-sub .btn--primary{height:44px;padding:0 20px;font-size:14px;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13.5px;color:#7C9490;
}
.footer-bottom nav{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom a{color:#AFC5C0;font-size:13.5px;}
.footer-bottom a:hover{color:#4FC3B4;}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);z-index:120;
  background:#fff;box-shadow:-24px 0 48px -30px rgba(6,40,36,.6);
  transform:translateX(102%);transition:transform .28s ease;
  padding:24px 22px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--c-border);background:#fff;cursor:pointer;color:var(--c-ink);}
.drawer-close:hover{background:var(--c-primary-light);}
.drawer-search{display:flex;align-items:center;gap:10px;background:var(--c-bg);border:1px solid var(--c-border);border-radius:var(--r-pill);padding:0 16px;height:44px;margin-bottom:22px;}
.drawer-search input{border:none;background:transparent;flex:1;height:100%;}
.drawer-search input:focus{outline:none;}
.drawer h5{font-size:13px;letter-spacing:.1em;color:var(--c-text-2);margin:0 0 12px;font-weight:700;}
.drawer-links{display:grid;gap:8px;margin-bottom:26px;}
.drawer-links a{
  display:flex;align-items:center;gap:10px;height:46px;padding:0 14px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;color:var(--c-ink);background:var(--c-bg);
}
.drawer-links a.is-active{background:var(--grad);color:#fff;}
.drawer-links a:hover{color:var(--c-primary-dark);}
.drawer-links a.is-active:hover{color:#fff;}
.drawer-foot{display:grid;gap:12px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(6,40,36,.45);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .45s ease,transform .45s ease;}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .rhythm-grid{grid-template-columns:1.25fr 1fr;}
}
@media (max-width:1023px){
  .header-search{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .page-hero h1{font-size:38px;}
  .rhythm-grid{grid-template-columns:1fr;}
  .rhythm-main{grid-template-columns:1fr;}
  .topic-grid{grid-template-columns:1fr;}
  .topic-wide{grid-template-columns:1fr;padding:28px;}
  .feedback-grid{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:72px 0;}
}
@media (max-width:767px){
  .topbar-inner{height:60px;gap:12px;}
  .brand-text{font-size:17px;}
  .header-actions .btn{display:none;}
  .container{padding:0 16px;}
  .page-hero{padding:52px 0 46px;}
  .page-hero h1{font-size:30px;}
  .page-hero p.lead{font-size:15.5px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:26px;}
  .section-head p{font-size:15.5px;}
  .tl-item{grid-template-columns:1fr;gap:14px;padding:22px;}
  .tl-ver{border-right:none;border-bottom:1px solid var(--c-border);padding:0 0 12px;}
  .tl-ver .num{font-size:22px;}
  .req-row{grid-template-columns:1fr;gap:8px;padding:18px 20px;}
  .field-row{grid-template-columns:1fr;}
  .form-card,.checkcard,.topic-card{padding:22px;}
  .cta-inner h2{font-size:25px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .btn{width:100%;}
  .hero-cta .btn,.cta-actions .btn{width:100%;}
  .stat{flex:1 1 45%;}
  .btn-link{width:auto;}
  .footer-sub{flex-direction:column;}
  .footer-sub .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}