/* roulang page: index */
:root{
  --berry:#E94F7A;
  --berry-deep:#D83A52;
  --apricot:#FF9F6E;
  --ink:#2F1A24;
  --bg:#FFF8F2;
  --card:#FFFFFF;
  --soft:#FFE9E3;
  --line:#F0D6CE;
  --line-strong:#F3B7AB;
  --text:#5B4147;
  --muted:#8C6E74;
  --mint:#3FAE9A;
  --grad:linear-gradient(135deg,#E94F7A 0%,#FF7A62 55%,#FF9F6E 100%);
  --r-lg:26px;
  --r-md:20px;
  --r-sm:14px;
  --shadow:0 18px 50px rgba(128,48,64,.08);
  --shadow-hover:0 26px 60px rgba(128,48,64,.16);
  --gap:20px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body h1,body h2,body h3,body h4{margin:0 0 12px;color:var(--ink);font-weight:800;line-height:1.22}
body p{margin:0 0 12px}
body img{max-width:100%;height:auto;display:block}
body a{color:inherit;text-decoration:none;transition:color .2s ease}
body ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.h1{font-size:clamp(34px,5vw,64px);line-height:1.08;font-weight:800;letter-spacing:-.5px}
.h2{font-size:clamp(26px,3vw,40px);font-weight:800;line-height:1.2}
.h3{font-size:20px;font-weight:700;line-height:1.35}
.lead{font-size:17px;color:var(--text)}
.muted{color:var(--muted)}
.section{padding:88px 0}
.section--plain{background:#fff}
.section--soft{background:linear-gradient(180deg,#FFF8F2 0%,#FFE9E3 100%)}
.section--ink{background:#2F1A24;color:#F6E7E9}
.section--ink .h2,.section--ink .h3{color:#fff}
.sec-head{max-width:780px;margin-bottom:40px}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center}
.sec-desc{font-size:16.5px;color:var(--text);margin-top:10px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 13px;border-radius:999px;background:#FFF0EA;border:1px solid #FFD0C2;color:#A1283E;font-size:12.5px;font-weight:700;letter-spacing:.3px;margin-bottom:16px}
.badge{display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 12px;border-radius:999px;background:#FFF0EA;border:1px solid #FFD0C2;color:#A1283E;font-size:12.5px;font-weight:700;line-height:1}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--mint);flex:0 0 auto}
.badge--mint{background:#E9F7F4;border-color:#BFE6DF;color:#1F7F70}
.badge--mint .dot{background:var(--berry)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;text-align:center}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px rgba(233,79,122,.28)}
.btn-primary:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.05);box-shadow:0 18px 34px rgba(233,79,122,.34)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{color:var(--berry-deep);border-color:var(--line-strong);transform:translateY(-1px);box-shadow:0 12px 26px rgba(128,48,64,.08)}
.btn-ghost:active{transform:scale(.98)}
.btn-block{width:100%}
.btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(233,79,122,.28);outline-offset:2px}

/* 顶栏 */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,248,242,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:26px;min-height:70px}
.logo{display:flex;align-items:center;gap:11px;margin-right:auto}
.logo-mark{position:relative;width:38px;height:38px;border-radius:13px;background:var(--grad);flex:0 0 auto;box-shadow:0 10px 22px rgba(233,79,122,.28)}
.logo-mark::before{content:"";position:absolute;left:8px;top:11px;width:16px;height:12px;border-radius:6px;background:rgba(255,255,255,.92)}
.logo-mark::after{content:"";position:absolute;right:8px;bottom:10px;width:12px;height:9px;border-radius:5px;background:rgba(255,255,255,.72)}
.logo-dot{position:absolute;right:5px;top:5px;width:8px;height:8px;border-radius:50%;background:#FFE9E3;box-shadow:0 0 0 2px rgba(255,255,255,.5)}
.logo-text{display:flex;flex-direction:column;line-height:1.15;font-weight:800;color:var(--ink);font-size:16.5px;letter-spacing:.2px}
.logo-sub{font-size:11.5px;font-weight:700;color:var(--muted);letter-spacing:3px;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:24px;font-size:15px;font-weight:600}
.nav-links a{position:relative;padding:6px 0;color:var(--text)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;border-radius:2px;background:var(--grad);transition:width .25s ease}
.nav-links a:hover{color:var(--berry-deep)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{color:var(--berry)}
.nav-cta{min-height:46px}
.cta-short{display:none}

/* Hero */
.hero{position:relative;padding:64px 0 80px;background:
  radial-gradient(900px 420px at 12% -10%,rgba(233,79,122,.13),transparent 70%),
  radial-gradient(760px 380px at 90% 0%,rgba(255,159,110,.18),transparent 72%),
  var(--bg);}
.hero-head{max-width:880px;margin:0 auto;text-align:center}
.hero-lead{font-size:17px;line-height:1.85;color:var(--text);margin-top:18px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:26px}
.hero-note{font-size:13.5px;color:var(--muted);margin-top:16px}
.hero-stage-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.55fr) minmax(0,1fr);gap:20px;align-items:center;margin-top:48px}
.hero-side{display:flex;flex-direction:column;gap:16px;min-width:0}
.hero-mini{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:18px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.hero-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.hero-mini h3{font-size:15.5px;margin-bottom:6px}
.hero-mini p{font-size:13.5px;line-height:1.65;color:var(--muted);margin:0}
.hero-stage{position:relative;border-radius:28px;overflow:hidden;border:1px solid var(--line);box-shadow:0 34px 70px rgba(128,48,64,.16);background:#fff}
.hero-stage img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-float{position:absolute;display:inline-flex;align-items:center;gap:7px;padding:8px 13px;border-radius:999px;background:rgba(255,255,255,.94);border:1px solid var(--line);font-size:12.5px;font-weight:700;color:#A1283E;box-shadow:0 10px 24px rgba(128,48,64,.14)}
.hero-float--a{left:16px;top:18px}
.hero-float--b{right:16px;top:44%}
.hero-float--c{left:22px;bottom:18px}
.hero-float .dot{width:7px;height:7px;border-radius:50%;background:var(--mint)}
.metric-board{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:30px}
.metric{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:18px 20px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;min-width:0}
.metric:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.metric-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}
.metric-top strong{font-size:15.5px;color:var(--ink)}
.metric p{font-size:13.5px;line-height:1.65;color:var(--muted);margin:0}

/* 功能矩阵 */
.feature-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:20px}
.feature-card{grid-column:span 3;min-width:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;display:flex;flex-direction:column}
.feature-card--lg{grid-column:span 6}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.feature-media{aspect-ratio:16/9;overflow:hidden;background:var(--soft)}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.feature-card:hover .feature-media img{transform:scale(1.04)}
.feature-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.feature-body .h3{margin:0}
.feature-body p{font-size:14.5px;line-height:1.7;color:var(--muted);margin:0}
.icon-badge{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:13px;background:var(--grad);color:#fff;font-size:16px;font-weight:800;letter-spacing:0}
.feature-card--sm .feature-body{padding:22px 20px}

/* 对比 */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.compare-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow);min-width:0}
.compare-card--accent{border:1px solid transparent;background:
  linear-gradient(#fff,#fff) padding-box,
  var(--grad) border-box;
  box-shadow:0 24px 56px rgba(233,79,122,.16)}
.compare-card h3{margin-bottom:6px}
.compare-sub{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.compare-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;line-height:1.7;padding:10px 0;border-bottom:1px dashed var(--line);color:var(--text)}
.compare-list li:last-child{border-bottom:0}
.mark{flex:0 0 auto;width:20px;height:20px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:800;margin-top:3px}
.mark--off{background:#F6ECEA;color:#A98C8C}
.mark--on{background:#E9F7F4;color:#1F7F70}

/* 里程碑 */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 22px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;min-width:0}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:12px;background:var(--soft);color:#A1283E;font-weight:800;font-size:15px;margin-bottom:14px}
.step-card h3{font-size:18px}
.step-card p{font-size:14px;line-height:1.7;color:var(--muted);margin:0}

/* 下载 */
.download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.download-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;min-width:0}
.download-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.download-card h3{font-size:19px;margin:0}
.download-card p{font-size:14px;line-height:1.7;color:var(--muted);margin:0;flex:1}
.download-note{font-size:13.5px;color:var(--muted);margin-top:20px}
.download-visual{margin-top:28px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.download-visual img{width:100%;aspect-ratio:21/9;object-fit:cover}

/* 分类入口 */
.cat-entry{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);transition:box-shadow .25s ease,border-color .25s ease}
.cat-entry:hover{box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.cat-entry-body{padding:34px;display:flex;flex-direction:column;gap:14px;justify-content:center;min-width:0}
.cat-entry-media{background:var(--soft);min-height:240px}
.cat-entry-media img{width:100%;height:100%;object-fit:cover}
.cat-tags{display:flex;flex-wrap:wrap;gap:8px}

/* 生活圈场景 */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;min-width:0}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.scene-card--wide{grid-column:span 2;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:20px;align-items:center;padding:0;overflow:hidden}
.scene-card--wide .scene-body{padding:26px}
.scene-card--wide .scene-media{height:100%;min-height:200px;background:var(--soft)}
.scene-card--wide .scene-media img{width:100%;height:100%;object-fit:cover}
.scene-card h3{font-size:18px;margin-bottom:8px}
.scene-card p{font-size:14px;line-height:1.72;color:var(--muted);margin:0}
.scene-body .badge{margin-top:14px}

/* 资讯 */
.news-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:16px;min-width:0}
.news-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px 24px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);color:inherit}
.news-card h3{font-size:18px;margin-bottom:8px;color:var(--ink)}
.news-card:hover h3{color:var(--berry-deep)}
.news-card p{font-size:14.5px;line-height:1.7;color:var(--muted);margin:0 0 12px}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px;color:var(--muted)}
.news-empty{background:#fff;border:1px dashed var(--line-strong);border-radius:var(--r-md);padding:40px 24px;text-align:center;color:var(--muted);font-size:15px}
.news-aside{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--shadow)}
.news-aside h3{font-size:17px;margin-bottom:14px}
.aside-list li{padding:11px 0;border-bottom:1px dashed var(--line);font-size:14.5px}
.aside-list li:last-child{border-bottom:0}
.aside-list a{display:flex;align-items:center;gap:9px;color:var(--text)}
.aside-list a:hover{color:var(--berry-deep)}
.aside-list .dot{width:7px;height:7px;border-radius:50%;background:var(--apricot);flex:0 0 auto}
.news-more{margin-top:26px}

/* 保障 */
.guard-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.guard-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;min-width:0}
.guard-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.guard-card h3{font-size:16.5px;margin-bottom:8px}
.guard-card p{font-size:14px;line-height:1.7;color:var(--muted);margin:0}

/* 快速解答 */
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.quick-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow);min-width:0;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.quick-card h3{font-size:16.5px;margin-bottom:8px}
.quick-card p{font-size:14px;line-height:1.72;color:var(--muted);margin:0}

/* 体验细节 */
.detail-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.detail-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:6px 22px;box-shadow:var(--shadow);min-width:0}
.detail-item summary{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 0;font-weight:700;color:var(--ink);font-size:16px;cursor:pointer;list-style:none}
.detail-item summary::-webkit-details-marker{display:none}
.detail-item summary::after{content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--soft);color:#A1283E;font-size:16px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;transition:transform .2s ease}
.detail-item[open] summary::after{content:"–";transform:rotate(180deg)}
.detail-item .detail-body{padding:0 0 18px;font-size:14.5px;line-height:1.78;color:var(--muted)}
.detail-item[open]{border-color:var(--line-strong)}

/* 设备提醒 */
.device-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.device-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--shadow);min-width:0;display:flex;flex-direction:column;gap:10px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.device-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.device-card h3{font-size:18px;margin:0}
.device-card p{font-size:14px;line-height:1.72;color:var(--muted);margin:0;flex:1}
.device-card .link-arrow{font-size:14px;font-weight:700;color:var(--berry)}
.device-card .link-arrow:hover{color:var(--berry-deep);text-decoration:underline}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:4px 22px;box-shadow:var(--shadow);min-width:0;transition:border-color .2s ease}
.faq-item[open]{border-color:var(--line-strong)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 0;font-weight:700;color:var(--ink);font-size:15.5px;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--soft);color:#A1283E;font-size:16px;font-weight:700;display:inline-flex;align-items:center;justify-content:center}
.faq-item[open] summary::after{content:"–"}
.faq-answer{padding:0 0 18px;font-size:14.5px;line-height:1.78;color:var(--muted)}

/* 表单 */
.form-shell{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:34px;box-shadow:var(--shadow)}
.form-side{min-width:0}
.form-side h2{margin-bottom:12px}
.form-side p{font-size:14.5px;line-height:1.8;color:var(--muted)}
.form-side .badge{margin-right:8px;margin-bottom:8px}
.lead-form{display:flex;flex-direction:column;gap:16px;min-width:0}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label{font-size:13.5px;font-weight:700;color:var(--ink)}
.field .hint{font-size:12.5px;color:var(--muted);font-weight:400}
.field input,.field select,.field textarea{width:100%;min-height:46px;padding:11px 14px;border-radius:14px;border:1px solid var(--line);background:#FFFCFA;color:var(--text);font-size:15px;font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease}
.field textarea{min-height:96px;resize:vertical}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--line-strong)}
.field.is-error input,.field.is-error select,.field.is-error textarea{border-color:#E04A5F;background:#FFF6F6}
.field .error-text{display:none;font-size:12.5px;color:#C53048;font-weight:600}
.field.is-error .error-text{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;line-height:1.65;color:var(--muted)}
.check-row input{width:18px;height:18px;min-height:18px;margin-top:3px;flex:0 0 auto;accent-color:#E94F7A}
.form-status{display:none;font-size:13.5px;line-height:1.7;border-radius:14px;padding:12px 14px}
.form-status.is-ok{display:block;background:#E9F7F4;border:1px solid #BFE6DF;color:#1F7F70}
.form-status.is-error{display:block;background:#FFF1F2;border:1px solid #F6C7CE;color:#C53048}

/* 页脚 */
.site-footer{background:#2F1A24;color:#EBD9DC;padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.35fr) repeat(3,minmax(0,1fr));gap:28px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-sub{color:#C9AEB4}
.footer-brand p{font-size:13.5px;line-height:1.8;color:#C9AEB4;margin-top:16px;max-width:340px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-tags span{display:inline-flex;align-items:center;height:28px;padding:0 11px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);font-size:12.5px;color:#F3DCE0}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:14px}
.footer-col li{margin-bottom:9px;font-size:13.5px}
.footer-col a{color:#C9AEB4}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px;color:#A98E95}

/* 响应式 */
@media (max-width:1100px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .metric-board{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .guard-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .download-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .news-layout{grid-template-columns:minmax(0,1fr) 280px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1024px){
  .hero-stage-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-stage{order:-1;grid-column:1/-1}
  .feature-card--lg{grid-column:span 6}
  .feature-card{grid-column:span 3}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scene-card--wide{grid-column:span 2}
  .cat-entry{grid-template-columns:1fr}
  .cat-entry-media{min-height:220px;order:-1}
  .news-layout{grid-template-columns:1fr}
  .form-shell{grid-template-columns:1fr;padding:26px}
  .device-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:860px){
  .nav{flex-wrap:wrap;padding:10px 0;gap:10px;min-height:auto}
  .logo{margin-right:auto}
  .nav-cta{min-height:44px;padding:0 18px;font-size:14px}
  .cta-full{display:none}
  .cta-short{display:inline}
  .nav-links{order:3;width:100%;justify-content:center;gap:20px;font-size:13.5px;padding-top:2px}
  .download-grid{grid-template-columns:1fr}
  .compare-grid{grid-template-columns:1fr}
  .detail-grid{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr}
  .device-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:60px 0}
  .hero{padding:44px 0 60px}
  .feature-card--lg,.feature-card{grid-column:span 6}
  .quick-grid{grid-template-columns:1fr}
  .guard-grid{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .section{padding:52px 0}
  .metric-board{grid-template-columns:1fr}
  .feature-card--lg,.feature-card{grid-column:span 12}
  .scene-grid{grid-template-columns:1fr}
  .scene-card--wide{grid-column:span 1;grid-template-columns:1fr}
  .scene-card--wide .scene-media{min-height:180px;order:-1}
  .hero-float{display:none}
  .hero-actions .btn{width:100%}
  .cat-entry-body{padding:24px}
  .form-shell{padding:20px;border-radius:var(--r-md)}
  .news-card{padding:18px}
  .btn{min-height:46px}
}

/* roulang page: article */
:root{
  --berry:#E94F7A;
  --berry-deep:#D83A52;
  --apricot:#FF9F6E;
  --ink:#2F1A24;
  --bg:#FFF8F2;
  --card:#FFFFFF;
  --soft:#FFE9E3;
  --line:#F0D6CE;
  --line-strong:#F3B7AB;
  --text:#5B4147;
  --muted:#8C6E74;
  --mint:#3FAE9A;
  --grad:linear-gradient(135deg,#E94F7A 0%,#FF7A62 55%,#FF9F6E 100%);
  --r-lg:26px;
  --r-md:20px;
  --r-sm:14px;
  --shadow:0 18px 50px rgba(128,48,64,.08);
  --shadow-hover:0 26px 60px rgba(128,48,64,.16);
  --gap:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body h1,body h2,body h3,body h4{margin:0 0 12px;color:var(--ink);font-weight:800;line-height:1.22}
body p{margin:0 0 12px}
body img{max-width:100%;height:auto;display:block}
body a{color:inherit;text-decoration:none;transition:color .2s ease}
body ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.section{padding:72px 0}
.section--plain{background:#fff}
.section--soft{background:linear-gradient(180deg,#FFF8F2 0%,#FFE9E3 100%)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;min-height:30px;padding:0 13px;border-radius:999px;background:#FFF0EA;border:1px solid #FFD0C2;color:#A1283E;font-size:12.5px;font-weight:700;letter-spacing:.3px;margin-bottom:14px}
.badge{display:inline-flex;align-items:center;gap:7px;min-height:30px;padding:0 12px;border-radius:999px;background:#FFF0EA;border:1px solid #FFD0C2;color:#A1283E;font-size:12.5px;font-weight:700;line-height:1.2}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--mint);flex:0 0 auto}
.badge--mint{background:#E9F7F4;border-color:#BFE6DF;color:#1F7F70}
.badge--mint .dot{background:var(--berry)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;text-align:center}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px rgba(233,79,122,.28)}
.btn-primary:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.05);box-shadow:0 18px 34px rgba(233,79,122,.34)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{color:var(--berry-deep);border-color:var(--line-strong);transform:translateY(-1px);box-shadow:0 12px 26px rgba(128,48,64,.08)}
.btn-ghost:active{transform:scale(.98)}
.btn-block{width:100%}
.btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(233,79,122,.28);outline-offset:2px}
/* 顶栏 */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,248,242,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:26px;min-height:70px}
.logo{display:flex;align-items:center;gap:11px;margin-right:auto}
.logo-mark{position:relative;width:38px;height:38px;border-radius:13px;background:var(--grad);flex:0 0 auto;box-shadow:0 10px 22px rgba(233,79,122,.28)}
.logo-mark::before{content:"";position:absolute;left:8px;top:11px;width:16px;height:12px;border-radius:6px;background:rgba(255,255,255,.92)}
.logo-mark::after{content:"";position:absolute;right:8px;bottom:10px;width:12px;height:9px;border-radius:5px;background:rgba(255,255,255,.72)}
.logo-dot{position:absolute;right:5px;top:5px;width:8px;height:8px;border-radius:50%;background:#FFE9E3;box-shadow:0 0 0 2px rgba(255,255,255,.5)}
.logo-text{display:flex;flex-direction:column;line-height:1.15;font-weight:800;color:var(--ink);font-size:16.5px;letter-spacing:.2px}
.logo-sub{font-size:11.5px;font-weight:700;color:var(--muted);letter-spacing:3px;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:24px;font-size:15px;font-weight:600}
.nav-links a{position:relative;padding:6px 0;color:var(--text)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;border-radius:2px;background:var(--grad);transition:width .25s ease}
.nav-links a:hover{color:var(--berry-deep)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{color:var(--berry)}
.nav-cta{min-height:46px}
.cta-short{display:none}

/* 文章头部 */
.article-hero{position:relative;padding:40px 0 44px;background:
  radial-gradient(760px 360px at 10% -20%,rgba(233,79,122,.13),transparent 70%),
  radial-gradient(640px 320px at 92% 0%,rgba(255,159,110,.18),transparent 72%),
  var(--bg);
  border-bottom:1px solid var(--line)}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px}
.crumbs .sep{color:#DCBEB6}
.crumbs .current{color:#A1283E;font-weight:700}
.article-head{max-width:880px;min-width:0}
.article-title{font-size:clamp(27px,3.6vw,44px);font-weight:800;line-height:1.2;color:var(--ink);margin-bottom:16px;word-break:normal;overflow-wrap:break-word}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta .divider{width:4px;height:4px;border-radius:50%;background:#DCBEB6}
.article-hero-media{margin-top:26px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;max-width:880px}
.article-hero-media img{width:100%;aspect-ratio:16/8;object-fit:cover}

/* 导语卡 */
.lead-card{max-width:880px;background:#FFF0EA;border:1px solid #FFD0C2;border-left:5px solid var(--berry);border-radius:0 var(--r-md) var(--r-md) 0;padding:20px 24px;margin-top:26px}
.lead-card p{margin:0;font-size:16.5px;line-height:1.85;color:#7A4A55}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{display:inline-flex;align-items:center;min-height:28px;padding:0 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--berry-deep);font-size:12.5px;font-weight:700}

/* 正文 */
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr);gap:28px}
.article-main{max-width:840px;min-width:0}
.article-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:30px 32px}
.article-body{max-width:820px;min-width:0;font-size:16.5px;line-height:1.85;color:var(--text)}
.article-body h2{font-size:clamp(21px,2.3vw,27px);margin:34px 0 14px;padding-left:14px;border-left:5px solid var(--berry);line-height:1.35;word-break:normal;overflow-wrap:break-word}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:19.5px;margin:26px 0 10px;color:var(--ink);word-break:normal;overflow-wrap:break-word}
.article-body h4{font-size:17px;margin:20px 0 8px;color:var(--ink)}
.article-body p{margin:0 0 16px;font-size:16.5px;line-height:1.88}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px;line-height:1.8}
.article-body blockquote{margin:22px 0;padding:16px 20px;background:#FFF0EA;border-left:4px solid var(--apricot);border-radius:0 14px 14px 0;color:#7A4A55}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:16px;margin:20px 0;width:100%;height:auto}
.article-body a{color:var(--berry-deep);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#B3223C}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;border:1px solid var(--line);border-radius:12px;overflow:hidden;display:block;overflow-x:auto;white-space:nowrap}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:#FFF0EA;color:#A1283E;font-weight:700}
.article-body tr:nth-child(even) td{background:#FFFAF7}
.article-body hr{border:none;border-top:1px dashed var(--line);margin:26px 0}
.article-empty{text-align:center;padding:26px 0}
.article-empty h2{font-size:22px;margin-bottom:10px}
.article-empty p{color:var(--muted);margin-bottom:18px}

/* 信息卡 */
.info-card{background:#FFF0EA;border:1px solid #FFD0C2;border-radius:var(--r-md);padding:20px 22px;margin-top:26px}
.info-card h3{font-size:16px;margin-bottom:12px;color:#A1283E}
.info-list{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:#7A4A55}
.info-list span{display:inline-flex;align-items:center;gap:6px}
.info-list b{color:#A1283E;font-weight:700}

/* 下载提示条 */
.download-strip{margin:30px 0;background:linear-gradient(135deg,rgba(233,79,122,.10),rgba(255,159,110,.16));border:1px solid var(--line-strong);border-radius:var(--r-lg);padding:24px 26px}
.download-strip h3{font-size:18px;margin-bottom:8px;color:var(--ink)}
.download-strip p{font-size:14px;color:var(--muted);margin-bottom:16px}
.dl-buttons{display:flex;flex-wrap:wrap;gap:12px}
.dl-buttons .btn{min-height:44px;padding:0 20px;font-size:14px}

/* 相关推荐 */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{display:flex;flex-direction:column;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:20px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;min-width:0}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);color:inherit}
.rel-card h3{font-size:16px;line-height:1.5;margin:0;word-break:normal;overflow-wrap:break-word}
.rel-card p{font-size:13.5px;color:var(--muted);line-height:1.7;margin:0}
.rel-card .rel-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:auto;font-size:12.5px;color:var(--muted)}
.rel-empty{background:var(--card);border:1px dashed var(--line-strong);border-radius:var(--r-md);padding:22px;text-align:center;color:var(--muted);font-size:14px}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:880px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:0 22px;box-shadow:var(--shadow);transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;min-height:56px;padding:16px 0;font-size:15.5px;font-weight:700;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";margin-left:auto;font-size:20px;font-weight:700;color:var(--berry);line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-item .faq-body{padding:0 0 18px;font-size:14.5px;line-height:1.8;color:var(--text)}
.faq-item .faq-body p{margin:0}

/* 结尾 CTA */
.end-cta{background:var(--grad);border-radius:var(--r-lg);padding:34px;color:#fff;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;box-shadow:0 24px 56px rgba(233,79,122,.28)}
.end-cta h2{color:#fff;font-size:clamp(20px,2.4vw,26px);margin:0 0 6px}
.end-cta p{color:rgba(255,255,255,.9);margin:0;font-size:14.5px}
.end-cta .cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.end-cta .btn-ghost{background:#fff;color:var(--ink);border-color:transparent}
.end-cta .btn-ghost:hover{color:var(--berry-deep)}
.end-cta .btn-light{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.5)}
.end-cta .btn-light:hover{background:rgba(255,255,255,.26);transform:translateY(-1px)}

/* 页脚 */
.site-footer{background:#2F1A24;color:#F0DCDD;padding:56px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-brand p{font-size:14px;line-height:1.8;color:#D9BEC2;margin:14px 0 16px;max-width:340px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-sub{color:#D9BEC2}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags span{display:inline-flex;align-items:center;min-height:26px;padding:0 11px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);font-size:12px;color:#F3DCDD}
.footer-col h3{font-size:14.5px;color:#fff;margin-bottom:14px;letter-spacing:.5px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:13.5px;color:#D9BEC2;transition:color .2s ease}
.footer-col a:hover{color:#FFB9A4}
.footer-bottom{margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:12.5px;color:#B79A9F}

/* 响应式 */
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .nav-links{gap:18px;font-size:14px}
}
@media (max-width:768px){
  .nav{gap:14px;min-height:64px}
  .nav-links{display:none}
  .article-panel{padding:22px 18px}
  .lead-card{padding:16px 18px}
  .article-body p,.article-body{font-size:15.5px}
  .article-body h2{font-size:20px;margin-top:28px}
  .article-body h3{font-size:17.5px}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .end-cta{padding:24px}
  .end-cta .cta-actions{width:100%}
  .end-cta .cta-actions .btn{width:100%}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .section{padding:52px 0}
  .article-hero{padding:28px 0 34px}
  .cta-full{display:none}
  .cta-short{display:inline}
  .nav-cta{padding:0 18px;min-height:44px;font-size:14px}
  .dl-buttons .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-body table{font-size:13.5px}
}

/* roulang page: category1 */
:root{
  --berry:#E94F7A;
  --berry-deep:#D83A52;
  --apricot:#FF9F6E;
  --ink:#2F1A24;
  --bg:#FFF8F2;
  --card:#FFFFFF;
  --soft:#FFE9E3;
  --line:#F0D6CE;
  --line-strong:#F3B7AB;
  --text:#5B4147;
  --muted:#8C6E74;
  --mint:#3FAE9A;
  --grad:linear-gradient(135deg,#E94F7A 0%,#FF7A62 55%,#FF9F6E 100%);
  --r-lg:26px;
  --r-md:20px;
  --r-sm:14px;
  --shadow:0 18px 50px rgba(128,48,64,.08);
  --shadow-hover:0 26px 60px rgba(128,48,64,.16);
  --gap:20px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0 0 12px;color:var(--ink);font-weight:800;line-height:1.24}
h1{font-size:clamp(32px,4.4vw,54px);line-height:1.12;letter-spacing:-.5px}
h2{font-size:clamp(25px,2.8vw,38px);font-weight:800;line-height:1.25}
h3{font-size:19px}
p{margin:0 0 12px}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--berry-deep)}
img{max-width:100%;height:auto;display:block}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section--plain{background:#fff}
.section--soft{background:linear-gradient(180deg,#FFF8F2 0%,#FFE9E3 100%)}
.section-head{max-width:760px;margin-bottom:36px}
.section-head p{margin:0;color:var(--muted);font-size:16px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 13px;border-radius:999px;background:#FFF0EA;border:1px solid #FFD0C2;color:#A1283E;font-size:12.5px;font-weight:700;letter-spacing:.3px;margin-bottom:16px}
.badge{display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 12px;border-radius:999px;background:#FFF0EA;border:1px solid #FFD0C2;color:#A1283E;font-size:12.5px;font-weight:700;line-height:1}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--mint);flex:0 0 auto}
.badge--mint{background:#E9F7F4;border-color:#BFE6DF;color:#1F7F70}
.badge--mint .dot{background:var(--berry)}
.badge-row{display:flex;flex-wrap:wrap;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;text-align:center}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px rgba(233,79,122,.28)}
.btn-primary:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.05);box-shadow:0 18px 34px rgba(233,79,122,.34)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{color:var(--berry-deep);border-color:var(--line-strong);transform:translateY(-1px);box-shadow:0 12px 26px rgba(128,48,64,.08)}
.btn-ghost:active{transform:scale(.98)}
.btn-block{width:100%}
a:focus-visible,summary:focus-visible,button:focus-visible,.btn:focus-visible{outline:3px solid rgba(233,79,122,.28);outline-offset:2px}

/* 顶栏 */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,248,242,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:26px;min-height:70px}
.logo{display:flex;align-items:center;gap:11px;margin-right:auto}
.logo-mark{position:relative;width:38px;height:38px;border-radius:13px;background:var(--grad);flex:0 0 auto;box-shadow:0 10px 22px rgba(233,79,122,.28)}
.logo-mark::before{content:"";position:absolute;left:8px;top:11px;width:16px;height:12px;border-radius:6px;background:rgba(255,255,255,.92)}
.logo-mark::after{content:"";position:absolute;right:8px;bottom:10px;width:12px;height:9px;border-radius:5px;background:rgba(255,255,255,.72)}
.logo-dot{position:absolute;right:5px;top:5px;width:8px;height:8px;border-radius:50%;background:#FFE9E3;box-shadow:0 0 0 2px rgba(255,255,255,.5)}
.logo-text{display:flex;flex-direction:column;line-height:1.15;font-weight:800;color:var(--ink);font-size:16.5px;letter-spacing:.2px}
.logo-sub{font-size:11.5px;font-weight:700;color:var(--muted);letter-spacing:3px;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:24px;font-size:15px;font-weight:600}
.nav-links a{position:relative;padding:6px 0;color:var(--text)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;border-radius:2px;background:var(--grad);transition:width .25s ease}
.nav-links a:hover{color:var(--berry-deep)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{color:var(--berry)}
.nav-cta{min-height:46px}
.cta-short{display:none}

/* 分类头部 */
.cat-hero{position:relative;padding:44px 0 76px;background:
  radial-gradient(820px 380px at 8% -20%,rgba(233,79,122,.13),transparent 70%),
  radial-gradient(720px 360px at 92% 0%,rgba(255,159,110,.18),transparent 72%),
  var(--bg);
  border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:26px;flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--berry-deep)}
.crumb span.sep{color:#C9A8AE}
.crumb-current{color:#A1283E;font-weight:700}
.cat-hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);gap:36px;align-items:center}
.cat-hero-main{min-width:0;max-width:720px}
.cat-hero-main h1{margin-bottom:18px}
.cat-hero-lead{font-size:16.5px;line-height:1.85;color:var(--text);margin-bottom:22px}
.cat-hero-figure{margin:0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:0 28px 60px rgba(128,48,64,.14);background:#fff}
.cat-hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.cat-hero-figure figcaption{padding:12px 18px;font-size:13px;color:var(--muted);background:#fff;border-top:1px solid var(--line)}

/* 主题拆解 */
.topic-wrap{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:34px;align-items:start}
.topic-list{display:grid;gap:16px;min-width:0}
.topic-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px 26px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;min-width:0}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.topic-card h3{margin-bottom:8px;font-size:20px}
.topic-card p{margin:0;font-size:15.5px;color:var(--text)}
.topic-card .tag-inline{display:inline-block;margin-top:14px;font-size:12.5px;font-weight:700;color:#A1283E;background:#FFF0EA;border:1px solid #FFD0C2;border-radius:999px;padding:3px 11px}
.topic-side{min-width:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--shadow)}
.topic-side img{width:100%;border-radius:var(--r-sm);aspect-ratio:16/10;object-fit:cover;margin-bottom:16px}
.topic-side h3{font-size:17px;margin-bottom:8px}
.topic-side p{font-size:14px;color:var(--muted);margin-bottom:14px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud span{font-size:12.5px;font-weight:600;color:#7A5560;background:#FFF8F2;border:1px solid var(--line);border-radius:999px;padding:4px 12px}

/* 能力矩阵 */
.feature-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gap)}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:26px;box-shadow:var(--shadow);min-width:0;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;display:flex;flex-direction:column;gap:10px}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.feature-card h3{margin:0;font-size:19px}
.feature-card p{margin:0;font-size:14.8px;color:var(--text);line-height:1.7}
.feature-icon{width:44px;height:44px;border-radius:14px;background:var(--soft);color:#A1283E;display:grid;place-items:center;font-size:18px;font-weight:800;flex:0 0 auto}
.span-6{grid-column:span 6}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.feature-card--accent{background:linear-gradient(160deg,#FFF3EE 0%,#FFFFFF 65%);border-color:#FFD0C2}
.feature-card--accent .feature-icon{background:var(--grad);color:#fff}
.feature-card .badge{align-self:flex-start;margin-top:2px}

/* 使用路径 */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap)}
.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow);min-width:0;position:relative;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.step-num{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:12px;background:var(--grad);color:#fff;font-weight:800;font-size:15px;margin-bottom:14px;box-shadow:0 10px 20px rgba(233,79,122,.26)}
.step-card h3{font-size:17.5px;margin-bottom:8px}
.step-card p{margin:0;font-size:14.5px;color:var(--text)}

/* 内容方向列表 */
.direction-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.direction-card{display:grid;grid-template-columns:minmax(0,150px) minmax(0,1fr);gap:18px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:18px;box-shadow:var(--shadow);min-width:0;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.direction-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.direction-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-sm)}
.direction-body{min-width:0}
.direction-body h3{font-size:17.5px;margin-bottom:6px}
.direction-body p{margin:0 0 10px;font-size:14.2px;color:var(--text)}
.direction-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12.5px;color:var(--muted)}

/* 隐私控制 */
.privacy-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.privacy-card{background:#fff;border:1px solid var(--line);border-left:4px solid var(--mint);border-radius:var(--r-md);padding:24px 26px;box-shadow:var(--shadow);min-width:0;transition:transform .25s ease,box-shadow .25s ease}
.privacy-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.privacy-card h3{font-size:18px;margin-bottom:8px}
.privacy-card p{margin:0;font-size:14.8px;color:var(--text)}

/* 下载区 */
.dl-wrap{background:linear-gradient(140deg,#2F1A24 0%,#4A2733 100%);border-radius:var(--r-lg);padding:44px;color:#F7E9EC;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:36px;align-items:center}
.dl-copy{min-width:0}
.dl-copy h2{color:#fff;margin-bottom:12px}
.dl-copy p{color:#E8CDD3;font-size:15.5px;margin-bottom:16px}
.dl-copy .badge-row{margin-bottom:0}
.dl-copy .badge{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.24);color:#FFE3D9}
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;min-width:0}
.dl-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);border-radius:var(--r-md);padding:20px;text-align:center;min-width:0;transition:transform .25s ease,border-color .25s ease,background .25s ease}
.dl-card:hover{transform:translateY(-4px);border-color:rgba(255,159,110,.7);background:rgba(255,255,255,.11)}
.dl-card h3{color:#fff;font-size:17px;margin-bottom:6px}
.dl-card p{color:#DCC0C6;font-size:13px;margin-bottom:14px;min-height:38px}
.dl-card .btn{width:100%;min-height:44px;font-size:14px;padding:0 12px}
.dl-note{margin-top:18px;font-size:12.8px;color:#C6A9B1;line-height:1.7}

/* FAQ */
.faq-list{max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item+.faq-item{margin-top:12px}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-weight:700;color:var(--ink);font-size:16px;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--soft);color:#A1283E;display:grid;place-items:center;font-size:16px;font-weight:700;line-height:1;transition:transform .2s ease}
.faq-item[open] summary::after{content:"−";transform:rotate(0deg)}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--text)}
.faq-body p{margin:0}

/* 延伸阅读与收口 */
.read-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.read-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow);min-width:0;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.read-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.read-card h3{font-size:17.5px;margin-bottom:8px}
.read-card p{margin:0;font-size:14.2px;color:var(--muted)}
.read-card .read-link{display:inline-block;margin-top:14px;font-size:13.5px;font-weight:700;color:var(--berry-deep)}
.cta-band{margin-top:36px;background:linear-gradient(140deg,#FFF3EE 0%,#FFE9E3 100%);border:1px solid #FFD0C2;border-radius:var(--r-lg);padding:34px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:6px}
.cta-band p{margin:0;color:var(--muted);font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-footer{background:#2F1A24;color:#E7CDD3;padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:36px}
.footer-brand .logo{margin:0 0 16px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-sub{color:#D8B7BF}
.footer-brand p{font-size:14.2px;color:#CDAEB6;max-width:400px;line-height:1.8}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.footer-tags span{font-size:12px;color:#FFDCD0;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:4px 11px}
.footer-col{min-width:0}
.footer-col h3{color:#fff;font-size:15.5px;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:#CDAEB6}
.footer-col a:hover{color:#FF9F6E}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.8px;color:#B3939C}

/* 响应式 */
@media (max-width:1100px){
  .cat-hero-grid{grid-template-columns:1fr;gap:28px}
  .cat-hero-main{max-width:100%}
  .topic-wrap{grid-template-columns:1fr}
  .dl-wrap{grid-template-columns:1fr;padding:34px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:68px 0}
  .span-6{grid-column:span 12}
  .span-3{grid-column:span 6}
  .span-4{grid-column:span 6}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .read-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .direction-grid{grid-template-columns:1fr}
  .nav-links{gap:18px;font-size:14.5px}
}
@media (max-width:768px){
  .nav{gap:14px;min-height:64px}
  .nav-links{gap:14px;font-size:14px}
  .cat-hero{padding:30px 0 56px}
  .privacy-grid{grid-template-columns:1fr}
  .dl-grid{grid-template-columns:1fr}
  .dl-card p{min-height:0}
  .read-grid{grid-template-columns:1fr}
  .direction-card{grid-template-columns:1fr}
  .direction-card img{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .nav-links{display:none}
  .nav-cta{min-height:44px;padding:0 18px}
  .cta-full{display:none}
  .cta-short{display:inline}
  .logo-text{font-size:15.5px}
  .logo-sub{font-size:10.5px;letter-spacing:2px}
  .span-3,.span-4{grid-column:span 12}
  .step-grid{grid-template-columns:1fr}
  .dl-wrap{padding:26px 20px}
  .cta-band{padding:24px 20px;flex-direction:column;align-items:flex-start}
  .cta-actions .btn{width:100%}
  .topic-card,.feature-card,.privacy-card,.step-card{padding:20px}
}