/* roulang page: index */
:root{
  --purple:#5B3DF5;
  --purple-deep:#3B22B8;
  --purple-soft:#EDE8FF;
  --coral:#FF6A3D;
  --coral-deep:#C2410C;
  --orange-soft:#FFF0E9;
  --mint:#12B886;
  --star:#FFB020;
  --danger:#D92D20;
  --cream:#FFF8F3;
  --white:#FFFFFF;
  --lilac:#F7F4FF;
  --ink:#171022;
  --ink-2:#241A33;
  --text:#1E1729;
  --muted:#6F6579;
  --line:#F0E3DA;
  --line-strong:#E4D4C8;
  --grad-brand:linear-gradient(135deg,#5B3DF5 0%,#8B5CF6 45%,#FF6A3D 100%);
  --grad-btn:linear-gradient(135deg,#4B2FE0 0%,#7A4DFF 100%);
  --r-xl:40px;
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --shadow-soft:0 20px 50px -30px rgba(23,16,34,.35);
  --shadow-hover:0 28px 60px -28px rgba(91,61,245,.28);
  --shadow-nav:0 12px 30px -18px rgba(23,16,34,.25);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans CN","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--cream);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
:focus-visible{outline:3px solid rgba(91,61,245,.45);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:92px 0}
.section-head{max-width:640px;margin-bottom:40px}
.section-head h2{font-size:clamp(1.7rem,3vw,2.5rem);line-height:1.2;font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:12px;color:var(--muted);font-size:16px}
.section-head-row{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.text-link{color:var(--purple);font-weight:600;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1.5px;transition:color .2s ease}
.text-link:hover{color:var(--purple-deep);text-decoration-color:var(--coral)}
.tag{display:inline-flex;align-items:center;background:var(--purple-soft);color:var(--purple-deep);font-size:12px;font-weight:600;line-height:1;padding:6px 10px;border-radius:999px;white-space:nowrap}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:52px;padding:0 28px;border-radius:999px;font-size:15px;font-weight:700;line-height:1;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,filter .2s ease}
.btn svg{width:18px;height:18px;flex:none}
.btn-primary{background:var(--grad-btn);color:#fff;box-shadow:0 14px 30px -16px rgba(75,47,224,.75)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 38px -16px rgba(75,47,224,.8);filter:brightness(1.06)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:#fff;color:var(--purple-deep);border:1.5px solid #D9CEFF}
.btn-ghost:hover{background:var(--purple-soft);border-color:#B5A2FF;transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:44px;padding:0 20px;font-size:14px}

/* 头部导航 */
.site-header{position:sticky;top:12px;z-index:80;padding:0 24px}
.nav-shell{max-width:var(--container);margin:0 auto;height:64px;display:flex;align-items:center;gap:20px;padding:0 10px 0 16px;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:999px;box-shadow:var(--shadow-nav)}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--grad-brand);color:#fff;font-size:17px;font-weight:800;display:flex;align-items:center;justify-content:center;letter-spacing:0}
.brand-text{font-size:16px;font-weight:800;letter-spacing:-.01em;display:flex;align-items:center;gap:6px;white-space:nowrap}
.brand-sub{font-size:11px;font-weight:700;color:var(--purple);background:var(--purple-soft);border-radius:999px;padding:2px 7px;line-height:1.5}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;font-size:14px;font-weight:600;color:var(--text);transition:background .2s ease,color .2s ease}
.nav-link:hover{background:var(--purple-soft);color:var(--purple-deep)}
.nav-link.is-active{background:var(--purple-soft);color:var(--purple-deep)}
.nav-link.is-active::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);width:4px;height:4px;border-radius:50%;background:var(--grad-brand)}
.nav-actions{display:flex;align-items:center;gap:8px;flex:none}
.nav-cta{height:44px;padding:0 18px;font-size:14px}
.cta-short{display:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:999px;border:1px solid var(--line);align-items:center;justify-content:center;background:#fff;color:var(--text);transition:background .2s ease,border-color .2s ease}
.nav-toggle:hover{background:var(--purple-soft);border-color:#D9CEFF}
.nav-toggle:active{transform:scale(.96)}
.nav-toggle svg{width:20px;height:20px}
.nav-toggle .icon-close{display:none}
.nav-toggle[aria-expanded="true"] .icon-open{display:none}
.nav-toggle[aria-expanded="true"] .icon-close{display:block}
.mobile-panel{display:none;position:absolute;left:24px;right:24px;top:calc(100% + 8px);background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow-nav);padding:10px;max-width:var(--container);margin:0 auto}
.mobile-panel.is-open{display:block}
.mobile-link{display:flex;align-items:center;justify-content:space-between;height:50px;padding:0 16px;border-radius:16px;font-size:15px;font-weight:600;transition:background .2s ease,color .2s ease}
.mobile-link:hover,.mobile-link.is-active{background:var(--purple-soft);color:var(--purple-deep)}
.mobile-link + .mobile-link{border-top:1px solid var(--line)}
.mobile-cta{margin-top:10px;width:100%}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--cream);padding:56px 0 88px}
.hero::before{content:"";position:absolute;inset:0;background-image:url(/assets/images/backpic/back-1.webp);background-size:cover;background-position:center;opacity:.16;-webkit-mask-image:linear-gradient(to bottom,#000 0%,rgba(0,0,0,.35) 60%,transparent 96%);mask-image:linear-gradient(to bottom,#000 0%,rgba(0,0,0,.35) 60%,transparent 96%);pointer-events:none}
.hero::after{content:"";position:absolute;inset:-15% -12% auto;height:620px;background:radial-gradient(circle at 22% 30%,rgba(91,61,245,.2),transparent 58%),radial-gradient(circle at 82% 8%,rgba(255,106,61,.18),transparent 52%);pointer-events:none}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:6.5fr 5.5fr;gap:48px;align-items:center;min-height:640px}
.pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px;font-size:12.5px;font-weight:600;color:var(--purple-deep);box-shadow:var(--shadow-soft)}
.pill::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(18,184,134,.16)}
.hero h1{margin-top:20px;font-size:clamp(2.15rem,4.6vw,3.7rem);line-height:1.1;font-weight:800;letter-spacing:-.02em;max-width:15em}
.hero h1 em{font-style:normal;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:18px;font-size:17px;color:var(--muted);max-width:26em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{margin-top:22px;font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.demo-tag{font-size:11.5px;font-weight:600;color:var(--coral-deep);background:var(--orange-soft);border-radius:999px;padding:3px 9px;line-height:1.5}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats li{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:12px 18px;box-shadow:0 8px 20px -16px rgba(23,16,34,.45);min-width:112px}
.stat-num{display:block;font-size:22px;font-weight:800;line-height:1.2;color:var(--purple-deep)}
.stat-label{display:block;font-size:11.5px;color:var(--muted);margin-top:2px}
.hero-visual{position:relative;display:flex;align-items:center;justify-content:center;min-height:600px}
.hero-visual::before{content:"";position:absolute;width:min(420px,88%);height:520px;border-radius:48px;background:linear-gradient(150deg,#EDE8FF 0%,#FFF0E9 100%);transform:rotate(-5deg)}
.hero-visual::after{content:"";position:absolute;inset:auto 0 0 0;height:220px;background-image:radial-gradient(rgba(91,61,245,.22) 1.4px,transparent 1.4px);background-size:18px 18px;opacity:.5;pointer-events:none}
.phone{position:relative;z-index:2;width:300px;height:600px;background:#fff;border:1px solid var(--line);border-radius:46px;padding:12px;box-shadow:0 34px 80px -34px rgba(59,34,184,.55)}
.phone-screen{width:100%;height:100%;border-radius:36px;overflow:hidden;background:linear-gradient(160deg,#5B3DF5 0%,#8B5CF6 50%,#FF6A3D 100%)}
.phone-screen img{width:100%;height:100%;object-fit:cover}
.float-badge{position:absolute;z-index:3;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px 16px;box-shadow:var(--shadow-soft);display:flex;align-items:center;gap:10px}
.float-badge .fb-icon{width:32px;height:32px;border-radius:10px;background:var(--purple-soft);color:var(--purple-deep);display:flex;align-items:center;justify-content:center;flex:none}
.float-badge .fb-icon svg{width:17px;height:17px}
.float-badge strong{display:block;font-size:13px;line-height:1.3}
.float-badge span{display:block;font-size:11.5px;color:var(--muted);line-height:1.4}
.float-a{top:52px;left:-8px}
.float-b{bottom:66px;right:-6px}

/* 平台价值 */
.value{background:var(--white)}
.value-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.value-head{position:sticky;top:96px}
.value-head h2{font-size:clamp(1.6rem,2.6vw,2.2rem);line-height:1.24;font-weight:700}
.value-head p{margin-top:14px;color:var(--muted);font-size:15.5px;max-width:22em}
.value-head .text-link{display:inline-block;margin-top:20px;font-size:14.5px}
.value-list{border-top:1px solid var(--line)}
.value-item{display:flex;align-items:center;gap:20px;padding:26px 20px;border-bottom:1px solid var(--line);border-radius:var(--r-md);transition:background .22s ease}
.value-item:hover{background:var(--orange-soft)}
.value-icon{width:44px;height:44px;border-radius:14px;background:var(--grad-brand);color:#fff;display:flex;align-items:center;justify-content:center;flex:none;transition:transform .22s ease}
.value-icon svg{width:21px;height:21px}
.value-item:hover .value-icon{transform:scale(1.08)}
.value-body{flex:1;min-width:0}
.value-body h3{font-size:18px;font-weight:700;line-height:1.35}
.value-body p{margin-top:4px;font-size:14.5px;color:var(--muted)}
.value-arrow{width:20px;height:20px;color:var(--muted);flex:none;transition:transform .22s ease,color .22s ease}
.value-item:hover .value-arrow{transform:translateX(4px);color:var(--coral)}

/* 截图轮播 */
.gallery{position:relative;background:var(--ink);color:rgba(255,255,255,.88);overflow:hidden}
.gallery::before{content:"";position:absolute;inset:-20% -10% auto;height:520px;background:radial-gradient(circle at 18% 30%,rgba(91,61,245,.4),transparent 60%),radial-gradient(circle at 85% 10%,rgba(255,106,61,.28),transparent 55%);pointer-events:none}
.gallery .container{position:relative;z-index:1}
.gallery-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.gallery-head h2{font-size:clamp(1.7rem,3vw,2.5rem);font-weight:700;color:#fff;line-height:1.2;max-width:16em}
.gallery-head p{margin-top:10px;color:rgba(255,255,255,.64);font-size:15px}
.gallery-arrows{display:flex;gap:10px}
.round-btn{width:48px;height:48px;border-radius:50%;border:1px solid rgba(255,255,255,.24);color:#fff;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.06);transition:background .2s ease,transform .2s ease,border-color .2s ease}
.round-btn svg{width:20px;height:20px}
.round-btn:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.4);transform:translateY(-2px)}
.round-btn:active{transform:scale(.95)}
.track{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;scrollbar-width:none}
.track::-webkit-scrollbar{display:none}
.shot{scroll-snap-align:start;flex:0 0 auto;width:360px;background:#fff;border-radius:var(--r-lg);padding:16px 16px 22px;color:var(--text);box-shadow:0 24px 50px -30px rgba(0,0,0,.7);transition:transform .22s ease}
.shot:hover{transform:translateY(-4px)}
.shot-img{position:relative;aspect-ratio:16/10;border-radius:var(--r-md);overflow:hidden;background:linear-gradient(140deg,#EDE8FF,#FFF0E9)}
.shot-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.shot:hover .shot-img img{transform:scale(1.05)}
.shot-label{position:absolute;left:12px;top:12px;background:rgba(23,16,34,.78);color:#fff;font-size:11.5px;font-weight:600;padding:5px 10px;border-radius:999px;backdrop-filter:blur(6px)}
.shot h3{font-size:18px;font-weight:700;margin:16px 4px 0}
.shot p{font-size:14px;color:var(--muted);margin:6px 4px 0}
.swipe-hint{margin-top:18px;font-size:13px;color:rgba(255,255,255,.55);text-align:center}

/* 系统要求 */
.specs{background:var(--lilac)}
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.spec-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow-soft);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.spec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D9CEFF}
.spec-icon{width:44px;height:44px;border-radius:14px;background:var(--purple-soft);color:var(--purple-deep);display:flex;align-items:center;justify-content:center}
.spec-icon svg{width:21px;height:21px}
.spec-row{display:flex;align-items:center;gap:10px;margin-top:18px}
.spec-name{font-size:18px;font-weight:700}
.badge{font-size:11px;font-weight:700;line-height:1;padding:5px 9px;border-radius:999px}
.badge-min{background:var(--orange-soft);color:var(--coral-deep)}
.badge-rec{background:rgba(18,184,134,.12);color:#0B7C5C}
.spec-value{margin-top:10px;font-size:14.5px;color:var(--muted)}
.spec-value b{color:var(--text);font-weight:700}
.spec-note{margin-top:24px;background:var(--orange-soft);border:1px solid #FFD9C9;border-radius:var(--r-md);padding:16px 22px;font-size:14px;color:var(--coral-deep)}

/* 评价墙 */
.reviews{background:var(--white)}
.review-grid{display:grid;grid-template-columns:5fr 7fr;gap:24px}
.review-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;display:flex;flex-direction:column;gap:14px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D9CEFF}
.review-lg{background:var(--lilac);border-color:#D9CEFF;position:relative;overflow:hidden}
.review-lg::before{content:"";position:absolute;inset:0;border-radius:24px;padding:1px;background:var(--grad-brand);-webkit-mask:linear-gradient(#000,#000) content-box,linear-gradient(#000,#000);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.review-lg .review-text{font-size:17px;line-height:1.8;color:var(--text)}
.stars{display:flex;gap:3px;color:var(--star)}
.stars svg{width:16px;height:16px}
.review-text{font-size:14.5px;color:var(--muted);line-height:1.75}
.review-foot{margin-top:auto;display:flex;align-items:center;gap:12px;padding-top:6px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--grad-brand);color:#fff;font-size:15px;font-weight:800;display:flex;align-items:center;justify-content:center;flex:none}
.review-info strong{display:block;font-size:14px;font-weight:700}
.review-info span{display:block;font-size:12px;color:var(--muted)}
.review-mini{display:grid;grid-template-columns:1fr 1fr;gap:24px}

/* 下载区 */
.download{background:var(--cream)}
.download-panel{position:relative;overflow:hidden;display:grid;grid-template-columns:1fr 380px;gap:40px;align-items:center;padding:56px;border-radius:var(--r-xl);background:var(--grad-brand);color:#fff;box-shadow:0 34px 70px -40px rgba(91,61,245,.7)}
.download-panel::after{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;background:rgba(255,255,255,.14);pointer-events:none}
.download-left{position:relative;z-index:1}
.download-left h2{font-size:clamp(1.7rem,3vw,2.4rem);line-height:1.22;font-weight:700;color:#fff}
.download-left p{margin-top:12px;color:rgba(255,255,255,.86);font-size:15.5px;max-width:24em}
.qr-card{margin-top:28px;display:inline-flex;align-items:center;gap:14px;background:#fff;border-radius:var(--r-md);padding:12px 18px 12px 12px;box-shadow:0 18px 36px -22px rgba(0,0,0,.5)}
.qr-box{width:64px;height:64px;border-radius:10px;overflow:hidden;flex:none;background:#fff}
.qr-box svg{width:100%;height:100%;display:block}
.qr-card span{font-size:13px;font-weight:600;color:var(--text);line-height:1.5;display:block}
.qr-card small{display:block;font-size:11.5px;color:var(--muted);font-weight:400;margin-top:2px}
.download-btns{position:relative;z-index:1;display:flex;flex-direction:column;gap:14px}
.dl-btn{display:flex;align-items:center;gap:14px;height:64px;padding:0 22px;border-radius:999px;border:1px solid rgba(255,255,255,.45);background:rgba(255,255,255,.14);color:#fff;transition:transform .2s ease,background .2s ease,box-shadow .2s ease}
.dl-btn svg{width:24px;height:24px;flex:none}
.dl-btn strong{display:block;font-size:15px;font-weight:700;line-height:1.3}
.dl-btn small{display:block;font-size:11.5px;color:rgba(255,255,255,.72);line-height:1.4}
.dl-btn:hover{transform:translateY(-2px);background:rgba(255,255,255,.24)}
.dl-btn:active{transform:scale(.99)}
.dl-primary{background:#fff;color:var(--text);border-color:#fff;box-shadow:0 16px 34px -20px rgba(0,0,0,.6)}
.dl-primary small{color:var(--muted)}
.dl-primary:hover{background:#fff;transform:translateY(-2px);box-shadow:0 22px 40px -20px rgba(0,0,0,.6)}
.download-legal{margin-top:18px;font-size:13px;color:var(--muted);text-align:center}
.download-legal a{color:var(--purple);font-weight:600;text-decoration:underline;text-underline-offset:4px}

/* 最新信息 */
.news{background:var(--white)}
.news-grid{display:grid;grid-template-columns:5fr 7fr;gap:28px;align-items:start}
.news-feature{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:#fff;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D9CEFF}
.news-feature-media{display:block;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(140deg,#EDE8FF,#FFF0E9)}
.news-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-feature:hover .news-feature-media img{transform:scale(1.05)}
.news-feature-body{padding:24px 26px 26px}
.news-feature-body h3{font-size:20px;font-weight:700;line-height:1.4;margin-top:12px}
.news-feature-body h3 a:hover{color:var(--purple)}
.news-feature-body p{margin-top:10px;font-size:14.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--muted)}
.news-meta .text-link{font-size:13.5px}
.news-list{display:flex;flex-direction:column}
.news-row{display:flex;align-items:flex-start;gap:18px;padding:20px 4px;border-bottom:1px solid var(--line);transition:background .2s ease}
.news-row:first-child{padding-top:0}
.news-row:hover{background:var(--lilac)}
.news-row-main{flex:1;min-width:0}
.news-row h3{font-size:16.5px;font-weight:700;line-height:1.45;margin-top:8px}
.news-row h3 a:hover{color:var(--purple)}
.news-row p{margin-top:6px;font-size:13.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-row time{flex:none;font-size:12.5px;color:var(--muted);padding-top:6px}
.empty-state{border:1.5px dashed #D9CEFF;background:var(--lilac);border-radius:var(--r-lg);padding:52px 28px;text-align:center}
.empty-state svg{width:34px;height:34px;color:var(--purple);margin:0 auto 14px}
.empty-state strong{display:block;font-size:17px;font-weight:700}
.empty-state p{margin-top:8px;font-size:14px;color:var(--muted)}
.empty-state .btn{margin-top:20px}

/* FAQ */
.faq{background:var(--cream)}
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-side{position:sticky;top:96px}
.faq-side h2{font-size:clamp(1.6rem,2.6vw,2.2rem);line-height:1.24;font-weight:700}
.faq-side p{margin-top:12px;color:var(--muted);font-size:15px}
.support-card{margin-top:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-soft)}
.support-card strong{display:block;font-size:16px;font-weight:700}
.support-card p{margin-top:8px;font-size:14px;color:var(--muted)}
.support-card .btn{margin-top:16px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 4px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;transition:color .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--purple)}
.faq-plus{width:20px;height:20px;flex:none;color:var(--purple);transition:transform .25s ease}
.faq-item[open] .faq-plus{transform:rotate(45deg)}
.faq-answer{padding:0 4px 24px;font-size:15px;line-height:1.8;color:var(--muted);max-width:44em}

/* 页脚 */
.site-footer{position:relative;background:var(--ink);color:rgba(255,255,255,.88);padding:72px 0 0;margin-top:0}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad-brand)}
.footer-top{display:grid;grid-template-columns:4fr 2fr 2fr 2fr;gap:40px;padding-bottom:56px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-mark{box-shadow:0 10px 24px -14px rgba(91,61,245,.9)}
.footer-desc{margin-top:18px;font-size:14px;color:rgba(255,255,255,.64);max-width:18em}
.footer-qr{margin-top:22px;display:inline-flex;align-items:center;gap:12px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:10px 14px}
.footer-qr .qr-box{width:52px;height:52px;border-radius:8px;background:#fff;padding:3px}
.footer-qr span{font-size:12.5px;color:rgba(255,255,255,.72);line-height:1.5}
.footer-col strong{display:block;font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.64);transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:24px 0 34px;display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;font-size:12.5px;color:rgba(255,255,255,.55)}
.footer-bottom p{max-width:62em}

@media (max-width:1279px){
  .hero-inner{gap:36px}
  .value-grid{gap:40px}
  .faq-grid{gap:40px}
  .download-panel{grid-template-columns:1fr 340px;padding:48px}
}
@media (max-width:1024px){
  .section{padding:76px 0}
  .hero-inner{grid-template-columns:1fr 1fr;gap:28px;min-height:auto}
  .hero-visual{min-height:520px}
  .phone{width:262px;height:524px}
  .hero-visual::before{height:460px}
  .float-a{left:-14px;top:36px}
  .float-b{right:-14px;bottom:46px}
  .footer-top{grid-template-columns:3fr 2fr 2fr 2fr;gap:28px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-shell{gap:12px;padding:0 8px 0 14px}
  .nav-cta{height:40px;padding:0 14px;font-size:13px}
  .cta-full{display:none}
  .cta-short{display:inline}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-visual{min-height:auto;padding:24px 0 8px}
  .hero h1{max-width:none}
  .hero-sub{max-width:none}
  .value-grid{grid-template-columns:1fr;gap:28px}
  .value-head{position:static}
  .review-grid{grid-template-columns:1fr}
  .review-lg{grid-row:auto}
  .news-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .faq-side{position:static}
  .download-panel{grid-template-columns:1fr;padding:40px 32px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .site-header{padding:0 18px}
  .mobile-panel{left:18px;right:18px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .hero{padding:36px 0 60px}
  .hero-stats{gap:10px}
  .hero-stats li{flex:1 1 100px;min-width:0;padding:10px 14px}
  .spec-grid{grid-template-columns:1fr}
  .review-mini{grid-template-columns:1fr}
  .shot{width:78vw}
  .track{gap:16px}
  .download-panel{padding:32px 22px;border-radius:28px}
  .download-btns{gap:12px}
  .news-row{flex-direction:column;gap:8px}
  .news-row time{padding-top:0}
  .footer-top{grid-template-columns:1fr 1fr}
  .phone{width:240px;height:480px;border-radius:40px;padding:10px}
  .phone-screen{border-radius:32px}
  .hero-visual::before{height:400px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .site-header{padding:0 16px;top:8px}
  .mobile-panel{left:16px;right:16px}
  .nav-shell{height:58px;padding:0 6px 0 12px}
  .brand-text{font-size:15px}
  .brand-sub{font-size:10px;padding:2px 6px}
  .hero h1{font-size:clamp(1.9rem,8vw,2.4rem)}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .float-badge{padding:9px 12px;border-radius:14px}
  .float-a{left:-6px;top:20px}
  .float-b{right:-6px;bottom:24px}
  .float-badge strong{font-size:12px}
  .float-badge span{font-size:10.5px}
  .value-item{padding:20px 12px;gap:14px}
  .shot{width:86vw}
  .spec-card{padding:22px}
  .review-card{padding:22px}
  .download-panel{padding:28px 18px;border-radius:24px}
  .qr-card{padding:10px 14px 10px 10px}
  .qr-box{width:56px;height:56px}
  .dl-btn{height:60px;padding:0 18px}
  .news-feature-body{padding:20px}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-item summary{font-size:15px;padding:18px 2px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none !important;animation:none !important}
}

/* roulang page: article */
:root{
  --purple:#5B3DF5;
  --purple-deep:#3B22B8;
  --purple-light:#EDE8FF;
  --coral:#FF6A3D;
  --coral-deep:#C2410C;
  --coral-light:#FFF0E9;
  --mint:#12B886;
  --star:#FFB020;
  --danger:#D92D20;
  --cream:#FFF8F3;
  --white:#FFFFFF;
  --purple-gray:#F7F4FF;
  --ink:#171022;
  --ink-2:#241A33;
  --text:#1E1729;
  --text-2:#6F6579;
  --text-dark:rgba(255,255,255,.88);
  --text-dark-2:rgba(255,255,255,.64);
  --border:#F0E3DA;
  --border-dark:rgba(255,255,255,.14);
  --grad:linear-gradient(135deg,#5B3DF5 0%,#8B5CF6 45%,#FF6A3D 100%);
  --btn-grad:linear-gradient(135deg,#4B2FE0,#7A4DFF);
  --r-xl:40px;
  --r-card:28px;
  --r-md:22px;
  --r-sm:18px;
  --r-xs:14px;
  --shadow:0 20px 50px -30px rgba(23,16,34,.35);
  --shadow-hover:0 28px 60px -28px rgba(91,61,245,.28);
  --shadow-nav:0 12px 30px -18px rgba(23,16,34,.25);
  --gap-section: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 SC","Source Han Sans CN","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--cream);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
svg{display:block}
::selection{background:rgba(91,61,245,.18)}
:focus-visible{outline:3px solid rgba(91,61,245,.45);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:12px;z-index:80;padding:0 16px}
.nav-shell{
  position:relative;
  max-width:1200px;
  margin:0 auto;
  min-height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:8px 12px 8px 16px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--border);
  border-radius:999px;
  box-shadow:var(--shadow-nav);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--grad);color:#fff;
  display:grid;place-items:center;
  font-size:16px;font-weight:800;letter-spacing:0;
  box-shadow:0 8px 18px -10px rgba(91,61,245,.8);
}
.brand-text{display:inline-flex;align-items:center;gap:6px;font-size:16px;font-weight:800;color:var(--text);white-space:nowrap}
.brand-sub{font-size:11px;font-weight:700;color:var(--purple-deep);background:var(--purple-light);padding:2px 7px;border-radius:7px}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--text-2);
  transition:background .2s,color .2s;
  white-space:nowrap;
}
.nav-link:hover{background:var(--purple-light);color:var(--purple-deep)}
.nav-link.is-active{background:var(--purple-light);color:var(--purple-deep)}
.nav-link.is-active::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--grad)}
.nav-actions{display:flex;align-items:center;gap:8px;flex:none}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:14px;
  background:#fff;border:1px solid var(--border);cursor:pointer;
  transition:background .2s,border-color .2s;
}
.nav-toggle:hover{background:var(--purple-light);border-color:var(--purple-light)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:none;border-radius:999px;
  font-size:15px;font-weight:700;cursor:pointer;
  transition:transform .18s,box-shadow .18s,background .18s,color .18s,border-color .18s,filter .18s;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;flex:none}
.btn-primary{background:var(--btn-grad);color:#fff;box-shadow:0 14px 30px -16px rgba(91,61,245,.7)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);filter:brightness(1.05)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:#fff;border:1.5px solid var(--purple-light);color:var(--purple-deep)}
.btn-ghost:hover{background:var(--purple-light);border-color:var(--purple);transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:44px;padding:0 20px;font-size:14px}
.btn-white{background:#fff;color:var(--purple-deep);box-shadow:0 16px 32px -20px rgba(23,16,34,.5)}
.btn-white:hover{transform:translateY(-2px);filter:brightness(.98)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;
  background:var(--purple-light);color:var(--purple-deep);
  font-size:12.5px;font-weight:700;line-height:1.4;
}
.pill-coral{background:var(--coral-light);color:var(--coral-deep)}

/* ---------- 页面顶部 ---------- */
.page-hero{position:relative;overflow:hidden;padding:52px 0 6px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
  opacity:.12;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(560px 300px at 12% 0%,rgba(91,61,245,.14),transparent 70%),
    radial-gradient(520px 280px at 88% 10%,rgba(255,106,61,.14),transparent 72%),
    linear-gradient(180deg,rgba(255,248,243,0) 40%,var(--cream) 100%);
}
.page-hero > .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--text-2)}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--purple)}
.breadcrumb .sep{color:#C9BDD6}
.breadcrumb .current{color:var(--text);font-weight:600}

/* ---------- 文章头部 ---------- */
.article-head{max-width:860px;margin-top:20px}
.article-title{
  font-size:clamp(2rem,4.2vw,3rem);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.01em;
  margin:16px 0 18px;
  overflow-wrap:anywhere;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;font-size:13px;font-weight:500;color:var(--text-2)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#D8CCE4}
.article-meta time{font-variant-numeric:tabular-nums}

/* ---------- 文章布局 ---------- */
.article-main{padding:34px 0 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
.article-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:48px;
  box-shadow:var(--shadow);
  min-width:0;
}
.article-cover{margin:0 0 32px;border-radius:20px;overflow:hidden;border:1px solid var(--border)}
.article-cover img{width:100%;height:auto;object-fit:cover;aspect-ratio:16/9}
.article-body{font-size:17px;line-height:1.9;color:var(--text);max-width:760px;overflow-wrap:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  position:relative;
  font-size:26px;font-weight:700;line-height:1.4;
  margin:1.9em 0 .8em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;
  background:var(--grad);
}
.article-body h3{font-size:20px;font-weight:700;line-height:1.5;margin:1.6em 0 .6em}
.article-body h4{font-size:17px;font-weight:700;margin:1.4em 0 .5em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.4em 0}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:var(--coral-light);
  border-left:4px solid var(--coral);
  border-radius:0 16px 16px 0;
  color:#5C4438;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:20px;margin:1.6em auto;height:auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-2);margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;border-radius:16px;overflow:hidden}
.article-body th{background:var(--purple-light);color:var(--purple-deep);font-weight:700;text-align:left;padding:12px 16px;border:1px solid #E2DAFB}
.article-body td{padding:12px 16px;border:1px solid var(--border)}
.article-body a{color:var(--purple-deep);text-decoration:underline;text-underline-offset:4px;text-decoration-color:rgba(91,61,245,.35);transition:text-decoration-color .2s}
.article-body a:hover{text-decoration-color:var(--coral)}
.article-body hr{border:none;height:1px;background:var(--border);margin:2em 0}
.article-body strong{font-weight:700}

.article-actions{
  margin-top:36px;padding-top:24px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:12px;
}

/* ---------- 空态 ---------- */
.empty-state{
  border:1.5px dashed #E4D6EE;
  background:var(--purple-gray);
  border-radius:24px;
  padding:48px 28px;
  text-align:center;
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:18px;
  background:var(--grad);display:grid;place-items:center;color:#fff;
}
.empty-icon svg{width:26px;height:26px}
.empty-state strong{display:block;font-size:20px;font-weight:700;margin-bottom:8px}
.empty-state p{color:var(--text-2);font-size:15px;max-width:420px;margin:0 auto 22px}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:grid;gap:20px}
.dl-card{
  background:var(--grad);
  color:#fff;
  border-radius:24px;
  padding:26px 24px;
  box-shadow:0 24px 50px -28px rgba(91,61,245,.55);
}
.dl-card h2{font-size:19px;font-weight:800;line-height:1.4;margin:0 0 8px;color:#fff}
.dl-card p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.82);margin:0 0 18px}
.dl-card .btn{width:100%}
.dl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;font-size:11.5px;color:rgba(255,255,255,.72)}
.dl-meta span{background:rgba(255,255,255,.14);border-radius:999px;padding:3px 9px}
.side-links{background:#fff;border:1px solid var(--border);border-radius:var(--r-md);padding:22px}
.side-links strong{display:block;font-size:14px;font-weight:700;margin-bottom:6px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;border-top:1px solid var(--border);
  font-size:14px;color:var(--text-2);transition:color .2s,padding-left .2s;
}
.side-links a:first-of-type{border-top:none;margin-top:6px}
.side-links a:hover{color:var(--purple);padding-left:4px}
.side-links svg{width:14px;height:14px;color:#C9BDD6;flex:none}

/* ---------- 继续了解 ---------- */
.explore{padding:var(--gap-section) 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:28px}
.section-head h2{font-size:clamp(1.6rem,2.8vw,2.1rem);font-weight:700;line-height:1.3}
.section-head p{color:var(--text-2);font-size:15px;margin-top:8px}
.explore-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.explore-card{
  display:flex;gap:16px;align-items:flex-start;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  padding:24px;
  transition:transform .22s,box-shadow .22s,border-color .22s;
}
.explore-card:hover{transform:translateY(-4px);border-color:var(--purple-light);box-shadow:var(--shadow-hover)}
.explore-icon{
  width:44px;height:44px;flex:none;border-radius:14px;
  background:var(--grad);color:#fff;display:grid;place-items:center;
}
.explore-icon svg{width:20px;height:20px}
.explore-card h3{font-size:17px;font-weight:700;margin-bottom:6px}
.explore-card p{font-size:14px;color:var(--text-2);line-height:1.7}

/* ---------- 下载 CTA ---------- */
.cta-section{padding:var(--gap-section) 0 0}
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--grad);
  border-radius:var(--r-xl);
  padding:56px;
  color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  box-shadow:0 34px 70px -40px rgba(91,61,245,.7);
}
.cta-panel::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.12);pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:520px}
.cta-copy h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;line-height:1.3;margin-bottom:12px;color:#fff}
.cta-copy p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.85)}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--ink);
  color:var(--text-dark);
  margin-top:var(--gap-section);
  padding:72px 0 28px;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-sub{background:rgba(255,255,255,.14);color:#fff}
.footer-desc{font-size:14px;line-height:1.8;color:var(--text-dark-2);margin:16px 0 20px;max-width:280px}
.footer-qr{display:flex;align-items:center;gap:12px;font-size:12.5px;line-height:1.7;color:var(--text-dark-2)}
.qr-box{width:76px;height:76px;flex:none;border-radius:14px;background:#fff;padding:5px;display:block}
.qr-box svg{width:100%;height:100%}
.footer-col strong{display:block;font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--text-dark-2);transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid var(--border-dark);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-dark-2);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:26px}
  .article-card{padding:40px}
}
@media (max-width:1024px){
  :root{--gap-section:80px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr;row-gap:36px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-shell.nav-open .nav-links{
    display:flex;
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:14px;
    background:#fff;
    border:1px solid var(--border);
    border-radius:26px;
    box-shadow:var(--shadow-nav);
    z-index:90;
  }
  .nav-shell.nav-open .nav-link{padding:14px 16px;font-size:15px;border-radius:14px}
  .nav-link.is-active::before{width:5px;height:5px}
  .article-side{grid-template-columns:minmax(0,1fr)}
  .explore-grid{grid-template-columns:minmax(0,1fr)}
  .cta-panel{padding:40px}
}
@media (max-width:768px){
  :root{--gap-section:56px}
  .container{padding:0 20px}
  .site-header{padding:0 12px;top:8px}
  .nav-shell{min-height:60px;padding:6px 10px 6px 14px}
  .brand-text{font-size:15px}
  .brand-sub{display:none}
  .page-hero{padding:36px 0 4px}
  .article-title{font-size:clamp(1.75rem,6vw,2.2rem)}
  .article-card{padding:26px 20px;border-radius:24px}
  .article-body{font-size:16.5px;line-height:1.9}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .cta-panel{padding:32px 24px;border-radius:28px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-top{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .nav-shell{border-radius:20px}
  .nav-actions .btn span{display:none}
  .nav-actions .btn{padding:0 14px}
  .explore-card{padding:20px}
  .dl-card{padding:22px 20px}
  .footer-top{grid-template-columns:1fr}
  .footer-qr{margin-top:4px}
  .article-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --purple:#5B3DF5;
  --purple-deep:#3B22B8;
  --purple-soft:#EDE8FF;
  --violet:#8B5CF6;
  --coral:#FF6A3D;
  --coral-deep:#C2410C;
  --orange-soft:#FFF0E9;
  --mint:#12B886;
  --mint-soft:#E6F9F2;
  --mint-deep:#087F5B;
  --star:#FFB020;
  --danger:#D92D20;
  --cream:#FFF8F3;
  --white:#FFFFFF;
  --lilac:#F7F4FF;
  --ink:#171022;
  --ink2:#241A33;
  --text:#1E1729;
  --muted:#6F6579;
  --line:#F0E3DA;
  --line-strong:#E4D3C7;
  --grad:linear-gradient(135deg,#5B3DF5 0%,#8B5CF6 45%,#FF6A3D 100%);
  --grad-btn:linear-gradient(135deg,#4B2FE0 0%,#7A4DFF 100%);
  --shadow:0 20px 50px -30px rgba(23,16,34,.35);
  --shadow-hover:0 28px 60px -28px rgba(91,61,245,.28);
  --shadow-nav:0 12px 30px -18px rgba(23,16,34,.25);
  --r-xl:40px;
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --pill:999px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans CN","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--cream);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(91,61,245,.42);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  padding:12px 0;
  background:rgba(255,248,243,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.nav-shell{
  display:flex;align-items:center;gap:18px;
  height:64px;padding:0 12px 0 16px;
  background:rgba(255,255,255,.94);
  border:1px solid var(--line);
  border-radius:var(--pill);
  box-shadow:var(--shadow-nav);
}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  background:var(--grad);color:#fff;
  display:grid;place-items:center;
  font-size:18px;font-weight:800;line-height:1;
  box-shadow:0 10px 22px -14px rgba(91,61,245,.95);
}
.brand-text{display:flex;align-items:center;gap:6px;font-size:16px;font-weight:800;color:var(--text);letter-spacing:.2px}
.brand-sub{font-size:11px;font-weight:700;color:var(--purple-deep);background:var(--purple-soft);padding:2px 8px;border-radius:var(--pill);letter-spacing:0}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;min-height:44px;
  padding:0 14px;border-radius:var(--pill);
  font-size:14px;font-weight:600;color:var(--muted);
  transition:background .2s,color .2s;
}
.nav-link:hover{background:var(--purple-soft);color:var(--purple-deep)}
.nav-link.is-active{background:var(--purple-soft);color:var(--purple-deep)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:5px;
  width:4px;height:4px;border-radius:50%;
  background:var(--grad);transform:translateX(-50%);
}
.nav-actions{display:flex;align-items:center;gap:8px;flex:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:inherit;font-size:15px;font-weight:700;line-height:1;
  border:1.5px solid transparent;border-radius:var(--pill);
  padding:0 26px;min-height:50px;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease,filter .18s ease;
}
.btn svg{flex:none}
.btn-primary{background:var(--grad-btn);color:#fff;box-shadow:0 16px 32px -18px rgba(91,61,245,.95)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 40px -18px rgba(91,61,245,.95);filter:brightness(1.05)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:#fff;color:var(--purple-deep);border-color:#DCD3FF}
.btn-ghost:hover{background:var(--purple-soft);border-color:var(--violet);transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.98)}
.btn-white{background:#fff;color:var(--ink);min-height:52px;padding:0 26px;box-shadow:0 14px 30px -18px rgba(0,0,0,.45)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 20px 38px -18px rgba(0,0,0,.5)}
.btn-white:active{transform:scale(.98)}
.btn-nav{min-height:44px;padding:0 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}
.menu-toggle{
  display:none;width:44px;height:44px;flex:none;
  align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  color:var(--text);cursor:pointer;transition:background .2s,border-color .2s;
}
.menu-toggle:hover{background:var(--purple-soft);border-color:#DCD3FF}
.mobile-panel{display:none;margin-top:10px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:flex;align-items:center;min-height:48px;
  padding:0 12px;font-size:15px;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--line);transition:background .2s,color .2s;
}
.mobile-panel a:last-of-type{border-bottom:0}
.mobile-panel a:hover{background:var(--purple-soft);color:var(--purple-deep);border-radius:12px}
.mobile-panel .btn{width:100%;margin-top:10px}

/* ============ 页头 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:48px 0 60px;
  background:linear-gradient(160deg,#F7F4FF 0%,#FFF8F3 58%,#FFF0E9 100%);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  opacity:.15;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.95),transparent 88%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.95),transparent 88%);
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(91,61,245,.22),transparent 68%);
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--muted);margin-bottom:20px}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--purple-deep)}
.breadcrumb .sep{color:var(--line-strong)}
.breadcrumb [aria-current="page"]{color:var(--text);font-weight:700}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;color:var(--purple-deep);
  background:#fff;border:1px solid #E3DAFF;
  padding:6px 14px;border-radius:var(--pill);
  box-shadow:0 8px 20px -16px rgba(91,61,245,.8);
}
.page-title{
  font-size:clamp(2.1rem,4.6vw,3.4rem);
  font-weight:800;line-height:1.12;letter-spacing:-.5px;
  margin:18px 0 16px;
}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{max-width:620px;font-size:16.5px;line-height:1.85;color:var(--muted)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.meta-badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:600;color:var(--text);
  background:#fff;border:1px solid var(--line);
  padding:7px 14px;border-radius:var(--pill);
  box-shadow:0 10px 24px -22px rgba(23,16,34,.7);
}
.meta-badge i{width:7px;height:7px;border-radius:50%;background:var(--grad);display:block;flex:none}
.hero-visual{
  position:relative;border-radius:32px;overflow:hidden;
  border:1px solid rgba(255,255,255,.9);
  box-shadow:0 30px 60px -34px rgba(23,16,34,.5);
  background:var(--lilac);
}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-visual figcaption{
  position:absolute;left:16px;bottom:16px;
  background:rgba(255,255,255,.94);
  border:1px solid var(--line);border-radius:var(--pill);
  padding:7px 15px;font-size:12.5px;font-weight:700;color:var(--purple-deep);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}

/* ============ 板块骨架 ============ */
.section{padding:76px 0}
.section-alt{background:var(--lilac)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:30px}
.section-title{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;line-height:1.25;letter-spacing:-.3px}
.section-sub{margin-top:8px;font-size:15px;color:var(--muted);max-width:640px}
.link-plain{font-size:14px;font-weight:700;color:var(--purple);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;text-decoration-color:#C9BEFF;transition:color .2s,text-decoration-color .2s}
.link-plain:hover{color:var(--coral-deep);text-decoration-color:var(--coral)}

/* ============ 筛选胶囊 ============ */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.chip{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  min-height:44px;padding:0 20px;
  font-family:inherit;font-size:13.5px;font-weight:600;
  color:var(--muted);background:#fff;
  border:1px solid var(--line);border-radius:var(--pill);
  cursor:pointer;transition:all .2s ease;
}
.chip:hover{border-color:#DCD3FF;color:var(--purple-deep);background:var(--purple-soft)}
.chip:active{transform:scale(.98)}
.chip.is-active{background:var(--grad-btn);color:#fff;border-color:transparent;box-shadow:0 14px 28px -18px rgba(91,61,245,.95)}

/* ============ 主推大卡 ============ */
.feature-card{
  display:grid;grid-template-columns:1.02fr 1fr;
  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;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#DCD3FF}
.feature-media{position:relative;min-height:340px;overflow:hidden;background:var(--lilac)}
.feature-media img{width:100%;height:100%;object-fit:cover;object-position:center;transition:transform .55s ease}
.feature-card:hover .feature-media img{transform:scale(1.04)}
.feature-tag{
  position:absolute;left:20px;top:20px;
  background:rgba(23,16,34,.72);color:#fff;
  font-size:12px;font-weight:700;letter-spacing:.4px;
  padding:6px 14px;border-radius:var(--pill);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.feature-body{padding:34px;display:flex;flex-direction:column;justify-content:center;gap:14px}
.feature-body h3{font-size:clamp(1.2rem,2vw,1.45rem);font-weight:800;line-height:1.42;letter-spacing:-.2px}
.feature-body .card-desc{font-size:15px;line-height:1.85;color:var(--muted)}
.pill{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:700;letter-spacing:.2px;
  color:var(--purple-deep);background:var(--purple-soft);
  padding:5px 12px;border-radius:var(--pill);width:fit-content;
}
.pill-coral{color:var(--coral-deep);background:var(--orange-soft)}
.pill-mint{color:var(--mint-deep);background:var(--mint-soft)}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;font-weight:500;color:var(--muted)}
.card-meta time{font-variant-numeric:tabular-nums}

/* ============ 资讯卡片 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#DCD3FF}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--lilac)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-body h3{font-size:18px;font-weight:800;line-height:1.48;transition:color .2s}
.news-card:hover .news-body h3{color:var(--purple-deep)}
.news-body .card-desc{font-size:14.5px;line-height:1.8;color:var(--muted);flex:1}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:4px}

/* ============ 分页 ============ */
.pager{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;margin-top:44px}
.pager a,.pager span{
  min-width:44px;height:44px;padding:0 14px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:600;color:var(--muted);
  background:#fff;border:1px solid var(--line);border-radius:14px;
  font-variant-numeric:tabular-nums;
  transition:all .2s ease;
}
.pager a:hover{border-color:#DCD3FF;color:var(--purple-deep);background:var(--purple-soft)}
.pager .is-current{background:var(--grad-btn);color:#fff;border-color:transparent}
.pager .is-disabled{opacity:.45;pointer-events:none}
.pager-note{text-align:center;margin-top:14px;font-size:13px;color:var(--muted)}

/* ============ 入口卡 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.entry{
  display:flex;flex-direction:column;gap:12px;
  padding:26px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.entry:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#DCD3FF}
.entry-icon{width:46px;height:46px;border-radius:14px;background:var(--grad);color:#fff;display:grid;place-items:center;flex:none}
.entry strong{font-size:16px;font-weight:800;line-height:1.4}
.entry p{font-size:13.5px;line-height:1.75;color:var(--muted)}
.entry .entry-arrow{margin-top:auto;font-size:13px;font-weight:700;color:var(--purple);display:inline-flex;align-items:center;gap:6px}
.entry:hover .entry-arrow{color:var(--coral-deep)}

/* ============ 下载面板 ============ */
.cta-wrap{padding:0 0 8px}
.cta-panel{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
  padding:44px;border-radius:var(--r-xl);
  background:var(--grad);color:#fff;
  box-shadow:0 34px 70px -40px rgba(91,61,245,.95);
}
.cta-panel::before{
  content:"";position:absolute;right:-90px;top:-110px;
  width:360px;height:360px;border-radius:50%;
  background:rgba(255,255,255,.16);
}
.cta-panel::after{
  content:"";position:absolute;left:-70px;bottom:-140px;
  width:300px;height:300px;border-radius:50%;
  background:rgba(23,16,34,.16);
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{font-size:clamp(1.4rem,2.5vw,2rem);font-weight:800;line-height:1.3;letter-spacing:-.3px;color:#fff}
.cta-copy p{margin-top:10px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.9);max-width:520px}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}
.cta-panel .btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.55)}
.cta-panel .btn-ghost:hover{background:rgba(255,255,255,.24);border-color:#fff}

/* ============ 页脚 ============ */
.site-footer{position:relative;margin-top:88px;background:var(--ink);color:rgba(255,255,255,.88)}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad)}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding:58px 0 42px}
.site-footer .brand-text{color:#fff}
.footer-desc{margin-top:16px;max-width:280px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.64)}
.footer-qr{display:flex;align-items:center;gap:14px;margin-top:20px;font-size:12px;line-height:1.7;color:rgba(255,255,255,.64)}
.qr-box{width:76px;height:76px;flex:none;display:block;padding:4px;background:#fff;border-radius:12px}
.footer-col strong{display:block;font-size:14px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.64);transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:22px 0 34px;border-top:1px solid rgba(255,255,255,.14);
  font-size:12.5px;line-height:1.8;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:#fff}
.footer-note{max-width:720px}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-grid{gap:32px}
  .feature-body{padding:28px}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .nav-shell{gap:12px}
  .nav-actions{margin-left:auto}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .page-hero{padding:36px 0 48px}
  .feature-card{grid-template-columns:1fr}
  .feature-media{min-height:240px;aspect-ratio:16/10}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .cta-panel{grid-template-columns:1fr;padding:36px;gap:24px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:52px 0}
  .news-grid{grid-template-columns:1fr}
  .section-head{align-items:flex-start;flex-direction:column;gap:12px}
  .site-footer{margin-top:64px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .nav-shell{height:56px;padding:0 10px 0 12px}
  .brand-mark{width:32px;height:32px;font-size:16px;border-radius:10px}
  .brand-text{font-size:14.5px}
  .btn{width:100%;min-height:48px;padding:0 20px;font-size:14.5px}
  .btn-nav{width:auto;min-height:44px;padding:0 16px}
  .hero-actions{gap:10px}
  .page-title{font-size:1.95rem}
  .lede{font-size:15.5px}
  .feature-body{padding:22px}
  .news-body{padding:20px}
  .feature-card{border-radius:22px}
  .news-card{border-radius:18px}
  .entry-grid{grid-template-columns:1fr}
  .cta-panel{padding:26px 22px;border-radius:26px}
  .footer-top{grid-template-columns:1fr;gap:28px;padding:42px 0 32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .pager a,.pager span{min-width:42px;height:42px;padding:0 10px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --violet:#5B3DF5;
  --violet-deep:#3B22B8;
  --violet-soft:#EDE8FF;
  --violet-gray:#F7F4FF;
  --coral:#FF6A3D;
  --coral-deep:#C2410C;
  --coral-soft:#FFF0E9;
  --mint:#12B886;
  --mint-soft:#E7F8F1;
  --yellow:#FFB020;
  --danger:#D92D20;
  --cream:#FFF8F3;
  --white:#FFFFFF;
  --ink:#171022;
  --ink-2:#241A33;
  --text:#1E1729;
  --text-2:#6F6579;
  --line:#F0E3DA;
  --line-strong:#E4D3C7;
  --grad-brand:linear-gradient(135deg,#5B3DF5 0%,#8B5CF6 45%,#FF6A3D 100%);
  --grad-btn:linear-gradient(135deg,#4B2FE0 0%,#7A4DFF 100%);
  --shadow-sm:0 12px 24px -18px rgba(23,16,34,.35);
  --shadow-md:0 20px 50px -30px rgba(23,16,34,.35);
  --shadow-hover:0 28px 60px -28px rgba(91,61,245,.28);
  --nav-shadow:0 12px 30px -18px rgba(23,16,34,.25);
  --r-xl:40px;
  --r-lg:28px;
  --r-md:22px;
  --r-sm:18px;
  --r-xs:14px;
  --ease:cubic-bezier(.32,.72,.32,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans CN","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--cream);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
svg{display:block;}
:focus-visible{outline:3px solid rgba(91,61,245,.45);outline-offset:3px;border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.header-shell{
  position:sticky;
  top:0;
  z-index:80;
  padding:12px 0 0;
}
.site-header{position:relative;}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:64px;
  padding:0 14px 0 18px;
  background:rgba(255,255,255,.92);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--nav-shadow);
  backdrop-filter:blur(12px);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  background:var(--grad-brand);
  color:#fff;font-weight:800;font-size:17px;
  display:grid;place-items:center;
  box-shadow:0 10px 20px -12px rgba(91,61,245,.9);
}
.brand-text{
  display:flex;align-items:baseline;gap:6px;
  font-size:16px;font-weight:800;letter-spacing:.01em;color:var(--ink);
}
.brand-sub{
  font-size:11px;font-weight:700;color:var(--violet-deep);
  background:var(--violet-soft);padding:2px 7px;border-radius:999px;
  letter-spacing:.04em;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;gap:6px;
  height:40px;padding:0 14px;
  font-size:14px;font-weight:600;color:var(--text-2);
  border-radius:999px;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.nav-link:hover{background:var(--violet-soft);color:var(--violet-deep);}
.nav-link.is-active{background:var(--violet-soft);color:var(--violet-deep);}
.nav-link.is-active::after{
  content:"";width:4px;height:4px;border-radius:50%;
  background:var(--grad-brand);position:absolute;bottom:6px;left:50%;transform:translateX(-50%);
}
.header-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 20px;border-radius:999px;
  background:var(--grad-btn);color:#fff;
  font-size:14px;font-weight:700;
  box-shadow:0 14px 26px -16px rgba(75,47,224,.9);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),filter .22s var(--ease);
}
.nav-cta:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:var(--shadow-hover);}
.nav-cta:active{transform:scale(.98);}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:14px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.nav-toggle:hover{background:var(--violet-gray);border-color:var(--violet-soft);}
.nav-toggle svg{width:20px;height:20px;}
.mobile-panel{
  display:none;
  position:absolute;left:0;right:0;top:calc(100% + 10px);
  background:#fff;border:1px solid var(--line);border-radius:26px;
  box-shadow:var(--shadow-md);padding:12px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a.m-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 16px;border-radius:16px;
  font-size:15px;font-weight:600;color:var(--text);
}
.mobile-panel a.m-link:hover,.mobile-panel a.m-link:active{background:var(--violet-gray);}
.mobile-panel a.m-link.is-active{background:var(--violet-soft);color:var(--violet-deep);}
.mobile-panel .m-divider{height:1px;background:var(--line);margin:8px 6px;}
.mobile-panel .m-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  margin-top:8px;min-height:48px;border-radius:16px;
  background:var(--grad-btn);color:#fff;font-size:15px;font-weight:700;
}

/* ============ 通用按钮/标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:50px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:700;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),filter .22s var(--ease);
}
.btn svg{width:18px;height:18px;}
.btn-primary{background:var(--grad-btn);color:#fff;box-shadow:0 16px 30px -18px rgba(75,47,224,.85);}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:#fff;color:var(--violet-deep);border:1.5px solid var(--violet-soft);}
.btn-ghost:hover{background:var(--violet-soft);border-color:#D7CBFF;transform:translateY(-2px);}
.btn-ghost:active{transform:scale(.98);}
.btn-block{width:100%;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:999px;
  background:var(--violet-soft);color:var(--violet-deep);
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.tag-coral{background:var(--coral-soft);color:var(--coral-deep);}
.tag-mint{background:var(--mint-soft);color:#0B8A66;}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:44px 0 72px;
  background:
    radial-gradient(680px 320px at 88% 8%,rgba(255,106,61,.16),transparent 70%),
    radial-gradient(620px 320px at 6% 0%,rgba(91,61,245,.14),transparent 68%),
    var(--cream);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.14;
  mask-image:linear-gradient(to bottom,#000 0%,#000 55%,transparent 100%);
  -webkit-mask-image:linear-gradient(to bottom,#000 0%,#000 55%,transparent 100%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--text-2);margin-bottom:22px;
}
.crumb a:hover{color:var(--violet-deep);}
.crumb .sep{color:#C3B7CC;}
.crumb .current{color:var(--ink);font-weight:700;}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:52px;align-items:center;
}
.hero-copy h1{
  font-size:clamp(2.1rem,4.4vw,3.4rem);
  line-height:1.12;font-weight:800;letter-spacing:-.01em;
  margin:16px 0 0;color:var(--ink);
}
.hero-copy h1 .grad{
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.hero-lead{
  margin-top:16px;max-width:560px;
  font-size:16px;line-height:1.85;color:var(--text-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:26px;
  font-size:13px;font-weight:600;color:var(--text-2);
}
.hero-meta span{display:inline-flex;align-items:center;gap:6px;}
.hero-meta i{width:6px;height:6px;border-radius:50%;background:var(--grad-brand);display:inline-block;}
.hero-visual{position:relative;}
.hero-frame{
  position:relative;
  border-radius:var(--r-lg);
  padding:14px;
  background:linear-gradient(150deg,rgba(91,61,245,.14),rgba(255,106,61,.18));
  border:1px solid rgba(255,255,255,.7);
  box-shadow:var(--shadow-md);
}
.hero-frame img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:20px;
}
.hero-badge{
  position:absolute;left:-14px;bottom:26px;
  display:flex;align-items:center;gap:10px;
  padding:12px 16px;border-radius:18px;
  background:#fff;border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.hero-badge .hb-num{font-size:20px;font-weight:800;color:var(--ink);line-height:1;}
.hero-badge .hb-txt{font-size:12px;font-weight:600;color:var(--text-2);line-height:1.4;}
.hero-badge .hb-ico{
  width:34px;height:34px;border-radius:12px;
  background:var(--violet-soft);color:var(--violet-deep);
  display:grid;place-items:center;
}
.hero-badge .hb-ico svg{width:18px;height:18px;}

/* ============ 板块通用 ============ */
.section{padding:84px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{
  font-size:clamp(1.6rem,2.8vw,2.3rem);
  line-height:1.25;font-weight:800;color:var(--ink);
  margin-top:14px;
}
.section-head p{margin-top:14px;font-size:16px;color:var(--text-2);max-width:640px;}

/* ============ 学习路径 ============ */
.path-section{background:linear-gradient(180deg,var(--cream) 0%,#fff 100%);}
.path-track{
  position:relative;
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;margin-top:8px;
}
.path-track::before{
  content:"";
  position:absolute;left:6%;right:6%;top:42px;height:2px;
  background:linear-gradient(90deg,rgba(91,61,245,.45),rgba(255,106,61,.45));
  border-radius:2px;
}
.path-item{
  position:relative;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:26px 24px 28px;
  box-shadow:var(--shadow-sm);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.path-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#DCD2FF;}
.path-num{
  font-size:40px;font-weight:800;line-height:1;
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  font-variant-numeric:tabular-nums;
}
.path-item h3{margin-top:14px;font-size:19px;font-weight:800;color:var(--ink);line-height:1.4;}
.path-item p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--text-2);}
.path-step{
  display:inline-block;margin-bottom:12px;
  font-size:12px;font-weight:700;color:var(--violet-deep);
  background:var(--violet-soft);padding:4px 10px;border-radius:999px;
}

/* ============ 攻略主区 ============ */
.guide-section{background:#fff;}
.guide-layout{
  display:grid;grid-template-columns:240px minmax(0,1fr);
  gap:48px;align-items:start;
}
.guide-aside{position:sticky;top:104px;}
.aside-card{
  background:var(--violet-gray);
  border:1px solid #E9E1FF;
  border-radius:var(--r-md);
  padding:22px 20px;
}
.aside-title{font-size:13px;font-weight:800;color:var(--violet-deep);letter-spacing:.04em;}
.toc-list{margin-top:14px;display:flex;flex-direction:column;gap:4px;}
.toc-list a{
  display:flex;align-items:center;gap:9px;
  min-height:40px;padding:0 12px;border-radius:12px;
  font-size:14px;font-weight:600;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.toc-list a::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:#CFC4E4;transition:background .2s var(--ease);
}
.toc-list a:hover{background:#fff;color:var(--violet-deep);}
.toc-list a:hover::before,.toc-list a.is-current::before{background:var(--grad-brand);}
.toc-list a.is-current{background:#fff;color:var(--violet-deep);}
.aside-download{
  margin-top:18px;padding:22px 20px;
  border-radius:var(--r-md);
  background:var(--ink);color:rgba(255,255,255,.88);
  position:relative;overflow:hidden;
}
.aside-download::after{
  content:"";position:absolute;right:-40px;top:-40px;width:140px;height:140px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,61,.45),transparent 68%);
}
.aside-download strong{display:block;font-size:15px;font-weight:800;color:#fff;position:relative;z-index:1;}
.aside-download p{margin-top:8px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.64);position:relative;z-index:1;}
.aside-download .btn{margin-top:16px;min-height:44px;font-size:14px;position:relative;z-index:1;}

.guide-group + .guide-group{margin-top:48px;}
.group-head{display:flex;align-items:center;gap:14px;margin-bottom:22px;}
.group-head .bar{width:4px;height:26px;border-radius:4px;background:var(--grad-brand);}
.group-head h2{font-size:clamp(1.35rem,2.2vw,1.75rem);font-weight:800;color:var(--ink);line-height:1.3;}
.group-head .count{
  margin-left:auto;font-size:12px;font-weight:700;color:var(--text-2);
  background:var(--violet-gray);padding:5px 11px;border-radius:999px;white-space:nowrap;
}
.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.guide-card{
  display:flex;flex-direction:column;gap:10px;
  padding:24px 22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#DCD2FF;}
.card-num{
  align-self:flex-start;
  font-size:12px;font-weight:800;letter-spacing:.06em;
  color:var(--violet-deep);background:var(--violet-soft);
  padding:4px 10px;border-radius:999px;
  font-variant-numeric:tabular-nums;
}
.guide-card h3{font-size:18px;font-weight:800;line-height:1.45;color:var(--ink);}
.guide-card p{font-size:14px;line-height:1.8;color:var(--text-2);}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px dashed #EFE3F7;
  font-size:13px;font-weight:600;color:var(--text-2);
}
.card-meta .time{display:inline-flex;align-items:center;gap:6px;}
.card-meta .time svg{width:15px;height:15px;color:var(--coral);}
.card-meta .go{
  display:inline-flex;align-items:center;gap:5px;
  color:var(--violet-deep);font-weight:700;
}
.card-meta .go svg{width:15px;height:15px;transition:transform .25s var(--ease);}
.guide-card:hover .go svg{transform:translateX(3px);}

/* ============ 提示条 ============ */
.tip-band{
  display:flex;align-items:flex-start;gap:16px;
  margin-top:44px;padding:22px 24px;
  border-radius:var(--r-md);
  background:var(--mint-soft);
  border:1px solid #C8EFE0;
}
.tip-band .tip-ico{
  flex-shrink:0;width:42px;height:42px;border-radius:13px;
  background:#fff;color:#0B8A66;display:grid;place-items:center;
  box-shadow:var(--shadow-sm);
}
.tip-band .tip-ico svg{width:20px;height:20px;}
.tip-band strong{display:block;font-size:15px;font-weight:800;color:#0B6E52;}
.tip-band p{margin-top:6px;font-size:14px;line-height:1.8;color:#25735C;}

/* ============ FAQ ============ */
.faq-section{background:var(--violet-gray);}
.faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:56px;align-items:start;}
.faq-side h2{font-size:clamp(1.6rem,2.8vw,2.2rem);font-weight:800;line-height:1.25;color:var(--ink);margin-top:14px;}
.faq-side p{margin-top:14px;font-size:15px;color:var(--text-2);}
.faq-support{
  margin-top:26px;padding:22px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.faq-support strong{display:block;font-size:15px;font-weight:800;color:var(--ink);}
.faq-support p{margin-top:6px;font-size:13.5px;line-height:1.75;color:var(--text-2);}
.faq-support .btn{margin-top:16px;min-height:44px;font-size:14px;}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:6px 24px;box-shadow:var(--shadow-sm);}
.faq-item{border-bottom:1px solid #F2EAF3;}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  display:flex;align-items:center;gap:16px;
  padding:20px 0;cursor:pointer;list-style:none;
  font-size:16px;font-weight:700;color:var(--ink);
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{
  flex-shrink:0;margin-left:auto;
  width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--violet-soft);color:var(--violet-deep);
  transition:transform .28s var(--ease),background .28s var(--ease);
}
.faq-item summary .plus svg{width:14px;height:14px;}
.faq-item[open] summary .plus{transform:rotate(45deg);background:var(--coral-soft);color:var(--coral-deep);}
.faq-item .answer{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:680px;}
.faq-item summary:hover{color:var(--violet-deep);}

/* ============ 下载 CTA ============ */
.cta-section{padding:0 0 88px;background:var(--violet-gray);}
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  padding:52px 56px;
  background:var(--grad-brand);
  color:#fff;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center;
  box-shadow:0 40px 80px -50px rgba(75,47,224,.9);
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(420px 220px at 88% 12%,rgba(255,255,255,.22),transparent 70%);
  pointer-events:none;
}
.cta-panel h2{position:relative;font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;line-height:1.25;}
.cta-panel p{position:relative;margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.88);max-width:520px;}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px;}
.btn-white{background:#fff;color:var(--violet-deep);box-shadow:0 18px 34px -20px rgba(0,0,0,.45);}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 24px 44px -22px rgba(0,0,0,.5);}
.btn-white:active{transform:scale(.98);}
.btn-outline-light{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.2);transform:translateY(-2px);}
.btn-outline-light:active{transform:scale(.98);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.88);
  padding:72px 0 28px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:var(--grad-brand);
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));
  gap:40px;
}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-sub{background:rgba(255,255,255,.14);color:#fff;}
.footer-desc{
  margin-top:18px;font-size:14px;line-height:1.8;
  color:rgba(255,255,255,.64);max-width:280px;
}
.footer-qr{display:flex;align-items:center;gap:14px;margin-top:22px;}
.qr-box{
  width:92px;height:92px;border-radius:16px;overflow:hidden;background:#fff;
  padding:6px;flex-shrink:0;
}
.qr-box svg{width:100%;height:100%;}
.footer-qr span:last-child{font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.64);}
.footer-col strong{
  display:block;font-size:14px;font-weight:800;color:#fff;letter-spacing:.02em;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.64);
  transition:color .2s var(--ease);
}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:52px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.52);
}
.footer-bottom .fb-links{display:flex;flex-wrap:wrap;gap:8px 18px;}
.footer-bottom a:hover{color:#fff;}
.disclaimer{
  margin-top:14px;font-size:12.5px;line-height:1.8;color:rgba(255,255,255,.45);max-width:900px;
}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .hero-grid{gap:36px;}
  .guide-layout{grid-template-columns:210px minmax(0,1fr);gap:32px;}
  .faq-layout{gap:36px;}
}
@media (max-width:960px){
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{justify-content:space-between;height:60px;}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:36px;}
  .hero-visual{max-width:520px;}
  .hero-badge{left:auto;right:16px;bottom:-14px;}
  .path-track{grid-template-columns:minmax(0,1fr);}
  .path-track::before{display:none;}
  .guide-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .guide-aside{position:static;}
  .aside-card{padding:16px;}
  .toc-list{
    flex-direction:row;overflow-x:auto;gap:8px;
    padding-bottom:4px;-webkit-overflow-scrolling:touch;
  }
  .toc-list a{
    flex:0 0 auto;min-height:44px;white-space:nowrap;
    background:#fff;border:1px solid #E9E1FF;
  }
  .aside-download{display:none;}
  .faq-layout{grid-template-columns:minmax(0,1fr);}
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:40px 32px;gap:26px;border-radius:32px;}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:58px 0;}
  .section-tight{padding:48px 0;}
  .page-hero{padding:32px 0 54px;}
  .hero-copy h1{font-size:clamp(1.85rem,7vw,2.4rem);}
  .hero-lead{font-size:15px;}
  .hero-actions .btn{flex:1 1 160px;}
  .guide-grid{grid-template-columns:minmax(0,1fr);}
  .faq-list{padding:4px 18px;}
  .cta-section{padding-bottom:64px;}
  .cta-panel{padding:32px 24px;border-radius:26px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-top{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .header-inner{height:56px;padding:0 10px 0 14px;}
  .brand-text{font-size:15px;}
  .brand-sub{display:none;}
  .hero-frame{padding:10px;border-radius:24px;}
  .hero-frame img{border-radius:16px;}
  .hero-badge{position:static;margin-top:14px;}
  .path-item{padding:22px 18px;border-radius:20px;}
  .guide-card{padding:20px 18px;border-radius:20px;}
  .tip-band{flex-direction:column;gap:12px;padding:18px;}
  .faq-item summary{font-size:15px;gap:12px;}
  .section-head h2{font-size:1.5rem;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --purple:#5B3DF5;
  --purple-deep:#3B22B8;
  --purple-soft:#EDE8FF;
  --coral:#FF6A3D;
  --coral-deep:#C2410C;
  --coral-soft:#FFF0E9;
  --mint:#12B886;
  --mint-soft:#E4F8F1;
  --star:#FFB020;
  --danger:#D92D20;
  --cream:#FFF8F3;
  --white:#FFFFFF;
  --lilac:#F7F4FF;
  --ink:#171022;
  --ink-2:#241A33;
  --text:#1E1729;
  --muted:#6F6579;
  --line:#F0E3DA;
  --line-strong:#E2D8FF;
  --grad:linear-gradient(135deg,#5B3DF5 0%,#8B5CF6 45%,#FF6A3D 100%);
  --grad-btn:linear-gradient(135deg,#4B2FE0 0%,#7A4DFF 100%);
  --r-xl:40px;
  --r-lg:28px;
  --r-md:22px;
  --r-sm:18px;
  --r-xs:14px;
  --shadow-soft:0 20px 50px -30px rgba(23,16,34,.35);
  --shadow-hover:0 28px 60px -28px rgba(91,61,245,.28);
  --shadow-nav:0 12px 30px -18px rgba(23,16,34,.25);
  --section-gap:90px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans CN","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--cream);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--purple-deep)}
button{font:inherit}
h1,h2,h3,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
svg{display:block}
:focus-visible{outline:3px solid rgba(91,61,245,.38);outline-offset:3px;border-radius:10px}
::selection{background:rgba(91,61,245,.18)}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--section-gap) 0}
.section.is-tight{padding-top:56px}
.bg-white{background:var(--white)}
.bg-lilac{background:var(--lilac)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:12px 16px 0;
  background:linear-gradient(180deg,rgba(255,248,243,.96) 0%,rgba(255,248,243,.7) 60%,rgba(255,248,243,0) 100%);
}
.nav-shell{
  max-width:1200px;
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 12px 0 18px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--shadow-nav);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  flex:0 0 auto;
}
.brand-mark{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:12px;
  background:var(--grad);
  color:#fff;
  font-weight:800;
  font-size:17px;
  letter-spacing:0;
  box-shadow:0 10px 20px -12px rgba(91,61,245,.9);
}
.brand-text{
  font-size:17px;
  font-weight:800;
  color:var(--text);
  line-height:1;
  white-space:nowrap;
}
.brand-sub{
  display:inline-block;
  margin-left:6px;
  padding:3px 8px;
  border-radius:999px;
  background:var(--purple-soft);
  color:var(--purple-deep);
  font-size:11px;
  font-weight:700;
  vertical-align:2px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 14px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  text-decoration:none;
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--purple-soft);color:var(--purple-deep)}
.nav-link.is-active{background:var(--purple-soft);color:var(--purple-deep)}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;bottom:4px;
  transform:translateX(-50%);
  width:4px;height:4px;
  border-radius:50%;
  background:var(--grad);
}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:0;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  text-decoration:none;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,filter .22s ease;
}
.btn-primary{
  height:44px;
  padding:0 20px;
  background:var(--grad-btn);
  color:#fff;
  font-size:14px;
  box-shadow:0 14px 26px -16px rgba(75,47,224,.95);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 20px 34px -18px rgba(75,47,224,.9)}
.btn-primary:active{transform:scale(.98)}
.btn-primary:disabled{opacity:.45;transform:none;box-shadow:none;cursor:not-allowed}
.btn-ghost{
  height:48px;
  padding:0 26px;
  background:#fff;
  color:var(--purple-deep);
  border:1.5px solid var(--line-strong);
  font-size:15px;
}
.btn-ghost:hover{background:var(--purple-soft);border-color:#C9B9FF;transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.98)}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.menu-toggle:hover{background:var(--purple-soft);color:var(--purple-deep)}
.mobile-menu{
  display:none;
  position:absolute;
  top:84px;
  left:20px;
  right:20px;
  padding:10px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:26px;
  box-shadow:var(--shadow-soft);
  z-index:90;
}
.mobile-menu.is-open{display:block}
.mobile-menu a{
  display:block;
  padding:14px 16px;
  min-height:44px;
  border-radius:14px;
  font-size:15px;
  font-weight:600;
  color:var(--text);
  text-decoration:none;
  transition:background .2s ease,color .2s ease;
}
.mobile-menu a:hover,.mobile-menu a.is-active{background:var(--purple-soft);color:var(--purple-deep)}
.mobile-menu .mm-cta{
  margin-top:8px;
  text-align:center;
  background:var(--grad-btn);
  color:#fff;
  border-radius:14px;
  padding:14px 16px;
}
.mobile-menu .mm-cta:hover{filter:brightness(1.06);background:var(--grad-btn);color:#fff}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:26px 0 76px;
  background:linear-gradient(168deg,#F3EDFF 0%,#FBF4FF 42%,#FFF8F3 100%);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:auto -10% -30% -10%;
  height:60%;
  background:radial-gradient(ellipse at 20% 40%,rgba(91,61,245,.16),transparent 62%),
             radial-gradient(ellipse at 82% 20%,rgba(255,106,61,.18),transparent 60%);
  pointer-events:none;
}
.hero-bg{
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.14;
  -webkit-mask-image:linear-gradient(180deg,#000 24%,transparent 100%);
  mask-image:linear-gradient(180deg,#000 24%,transparent 100%);
  pointer-events:none;
}
.breadcrumb{
  position:relative;
  z-index:2;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:500;
  color:var(--muted);
  margin-bottom:28px;
}
.breadcrumb a{color:var(--muted);text-decoration:none;transition:color .2s ease}
.breadcrumb a:hover{color:var(--purple-deep);text-decoration:underline;text-underline-offset:4px}
.breadcrumb .sep{color:#C9BEDB}
.breadcrumb .current{color:var(--text);font-weight:600}
.hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:52px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  color:var(--purple-deep);
  font-size:12px;
  font-weight:700;
  letter-spacing:.02em;
  box-shadow:0 10px 24px -20px rgba(23,16,34,.5);
}
.eyebrow .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--grad);
}
.page-title{
  margin-top:18px;
  font-size:clamp(2rem,4.4vw,3.25rem);
  font-weight:800;
  line-height:1.1;
  letter-spacing:0;
}
.page-title .accent{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  margin-top:18px;
  max-width:40ch;
  font-size:17px;
  line-height:1.75;
  color:var(--muted);
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.mini-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  font-size:13px;
  font-weight:600;
  color:var(--text);
  box-shadow:0 12px 26px -24px rgba(23,16,34,.6);
}
.mini-chip svg{width:15px;height:15px;flex:0 0 auto}
.mini-chip.is-accent{background:var(--coral-soft);border-color:#FFD9CB;color:var(--coral-deep)}
.demo-note{
  margin-top:14px;
  font-size:12.5px;
  color:#9A8FA6;
}
.hero-panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--shadow-soft);
}
.panel-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.panel-head strong{font-size:14px;font-weight:700;color:var(--text)}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 11px;
  border-radius:999px;
  background:var(--purple-soft);
  color:var(--purple-deep);
  font-size:12px;
  font-weight:700;
}
.tag.is-mint{background:var(--mint-soft);color:#0B8A66}
.ver-num{
  margin-top:18px;
  font-size:clamp(2rem,4vw,2.6rem);
  font-weight:800;
  line-height:1.05;
  font-variant-numeric:tabular-nums;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.ver-caption{font-size:13px;color:var(--muted);margin-top:6px}
.panel-rows{margin-top:20px}
.panel-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;
}
.panel-row:last-child{border-bottom:0;padding-bottom:0}
.panel-row span{color:var(--muted)}
.panel-row strong{font-weight:700;color:var(--text);font-variant-numeric:tabular-nums}

/* ---------- 深色指标带 ---------- */
.stats-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--ink);
  color:rgba(255,255,255,.88);
  padding:38px 34px 30px;
}
.stats-band::before{
  content:"";
  position:absolute;
  inset:-40% -20% auto -20%;
  height:150%;
  background:radial-gradient(ellipse at 15% 20%,rgba(91,61,245,.42),transparent 58%),
             radial-gradient(ellipse at 88% 76%,rgba(255,106,61,.26),transparent 56%);
  pointer-events:none;
}
.stats-grid{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}
.stat-item{
  padding:20px 18px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.13);
  transition:transform .22s ease,background .22s ease,border-color .22s ease;
}
.stat-item:hover{transform:translateY(-4px);background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.24)}
.stat-icon{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:var(--grad);
  color:#fff;
  margin-bottom:14px;
}
.stat-icon svg{width:19px;height:19px}
.stat-label{font-size:12.5px;color:rgba(255,255,255,.62);font-weight:600}
.stat-value{
  margin-top:4px;
  font-size:clamp(1.4rem,2.4vw,1.85rem);
  font-weight:800;
  line-height:1.2;
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.stat-note{margin-top:6px;font-size:12.5px;color:rgba(255,255,255,.58)}
.band-foot{
  position:relative;
  margin-top:22px;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:12.5px;
  color:rgba(255,255,255,.5);
}

/* ---------- 通用板块标题 ---------- */
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:38px;
}
.sec-title{
  font-size:clamp(1.65rem,3vw,2.4rem);
  font-weight:700;
  line-height:1.2;
  letter-spacing:0;
}
.sec-desc{
  margin-top:12px;
  max-width:56ch;
  color:var(--muted);
  font-size:15.5px;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:700;
  color:var(--purple-deep);
  text-decoration:underline;
  text-underline-offset:5px;
  text-decoration-color:rgba(91,61,245,.35);
  transition:color .2s ease,text-decoration-color .2s ease;
  white-space:nowrap;
}
.text-link:hover{color:var(--coral-deep);text-decoration-color:var(--coral)}

/* ---------- 重点更新图文卡 ---------- */
.focus-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:26px;
}
.focus-card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  text-decoration:none;
  color:inherit;
  box-shadow:0 18px 44px -38px rgba(23,16,34,.6);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.focus-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.focus-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--grad);
}
.focus-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.focus-card:hover .focus-media img{transform:scale(1.04)}
.focus-media .float-tag{
  position:absolute;
  left:16px;top:16px;
  padding:6px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.94);
  color:var(--purple-deep);
  font-size:12px;
  font-weight:700;
  box-shadow:0 10px 22px -18px rgba(23,16,34,.8);
}
.focus-body{padding:24px 26px 26px}
.focus-body h3{font-size:20px;font-weight:700;line-height:1.35}
.focus-body p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.75}
.focus-meta{
  display:flex;
  align-items:center;
  gap:14px;
  margin-top:16px;
  font-size:13px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.focus-meta .arrow{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--purple-deep);
  font-weight:700;
  font-size:13px;
}
.focus-card:hover .focus-meta .arrow{color:var(--coral-deep)}

/* ---------- 时间线 ---------- */
.timeline{
  position:relative;
  margin-top:8px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:160px;
  top:10px;
  bottom:10px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,#5B3DF5 0%,#8B5CF6 52%,#FF6A3D 100%);
}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:130px minmax(0,1fr);
  column-gap:60px;
  padding-bottom:30px;
}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;
  left:153px;
  top:30px;
  width:16px;height:16px;
  border-radius:50%;
  background:#fff;
  border:3px solid var(--purple);
  box-shadow:0 0 0 5px rgba(91,61,245,.12);
  z-index:2;
}
.tl-item.is-latest::before{border-color:var(--coral);box-shadow:0 0 0 5px rgba(255,106,61,.15)}
.tl-date{text-align:right;padding-top:24px}
.tl-ver{
  font-size:19px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--text);
  line-height:1.3;
}
.tl-day{
  margin-top:2px;
  font-size:12.5px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.tl-card{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px 26px;
  box-shadow:0 20px 46px -42px rgba(23,16,34,.7);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.tl-item.is-latest .tl-card{
  border:2px solid transparent;
  background:linear-gradient(#fff,#fff) padding-box,linear-gradient(135deg,#5B3DF5,#FF6A3D) border-box;
  padding:23px 25px;
}
.tl-card-head{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:8px;
}
.tl-card h3{font-size:19px;font-weight:700;line-height:1.4}
.tl-points{margin-top:12px;display:grid;gap:8px}
.tl-points li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--muted);
  line-height:1.7;
}
.tl-points li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--purple-soft);
  border:1px solid var(--purple);
}
.tl-foot{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  margin-top:16px;
  padding-top:14px;
  border-top:1px dashed var(--line);
  font-size:13px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.tl-foot .text-link{margin-left:auto;font-size:13px}
.timeline-note{
  margin-top:30px;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:20px;
  align-items:center;
  padding:22px 26px;
  border-radius:var(--r-md);
  background:var(--coral-soft);
  border:1px solid #FFDACD;
}
.timeline-note p{font-size:14.5px;color:#8A4A31;line-height:1.7}
.timeline-note strong{color:var(--coral-deep)}

/* ---------- 发布流程 ---------- */
.flow-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  position:relative;
}
.flow-grid::before{
  content:"";
  position:absolute;
  top:34px;
  left:12%;
  right:12%;
  height:2px;
  background:linear-gradient(90deg,rgba(91,61,245,.35),rgba(255,106,61,.35));
  border-radius:2px;
}
.flow-item{position:relative;padding-top:0}
.flow-num{
  position:relative;
  z-index:1;
  display:inline-flex;
  align-items:baseline;
  font-size:44px;
  font-weight:800;
  line-height:1;
  font-variant-numeric:tabular-nums;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  padding-right:12px;
  background-color:var(--lilac);
}
.flow-item h3{margin-top:14px;font-size:18px;font-weight:700}
.flow-item p{margin-top:8px;font-size:14.5px;color:var(--muted);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:56px;
  align-items:start;
}
.faq-side .sec-title{margin-top:16px}
.support-card{
  margin-top:26px;
  padding:24px;
  border-radius:var(--r-md);
  background:var(--purple-soft);
  border:1px solid #DCD2FF;
}
.support-card h3{font-size:16px;font-weight:700;color:var(--purple-deep)}
.support-card p{margin-top:8px;font-size:14px;color:#554A78;line-height:1.7}
.support-card .btn{margin-top:16px;height:44px;padding:0 20px;font-size:14px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 4px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  list-style:none;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--purple-deep)}
.faq-plus{
  flex:0 0 auto;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--purple-soft);
  color:var(--purple-deep);
  transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-plus svg{width:14px;height:14px}
.faq-item[open] .faq-plus{transform:rotate(45deg);background:var(--purple);color:#fff}
.faq-answer{
  padding:0 4px 24px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  max-width:68ch;
}

/* ---------- 下载 CTA ---------- */
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-xl);
  background:var(--grad);
  color:#fff;
  padding:52px 48px;
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:44px;
  align-items:center;
  box-shadow:0 34px 70px -46px rgba(91,61,245,.9);
}
.cta-panel::after{
  content:"";
  position:absolute;
  inset:auto -10% -40% 40%;
  height:110%;
  background:radial-gradient(ellipse at 60% 60%,rgba(255,255,255,.22),transparent 62%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{font-size:clamp(1.6rem,2.8vw,2.2rem);font-weight:700;line-height:1.25;color:#fff}
.cta-copy p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.86);max-width:36ch}
.cta-qr{
  display:flex;
  align-items:center;
  gap:14px;
  margin-top:24px;
  padding:14px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.26);
  max-width:320px;
}
.cta-qr .qr-box{width:72px;height:72px;border-radius:12px;background:#fff;overflow:hidden;flex:0 0 auto}
.cta-qr .qr-box svg{width:100%;height:100%}
.cta-qr span{font-size:12.5px;line-height:1.6;color:rgba(255,255,255,.92)}
.cta-btns{position:relative;z-index:1;display:grid;gap:14px}
.dl-btn{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  min-height:64px;
  padding:0 22px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.55);
  background:rgba(255,255,255,.14);
  color:#fff;
  text-decoration:none;
  font-size:15px;
  font-weight:700;
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease;
}
.dl-btn span{font-size:12px;font-weight:500;color:rgba(255,255,255,.78)}
.dl-btn:hover{transform:translateY(-2px);background:rgba(255,255,255,.22);box-shadow:0 18px 32px -22px rgba(23,16,34,.8)}
.dl-btn:active{transform:scale(.99)}
.dl-primary{background:#fff;color:var(--purple-deep);border-color:#fff}
.dl-primary span{color:var(--muted)}
.dl-primary:hover{background:#fff;filter:brightness(1.02)}
.cta-legal{
  position:relative;
  z-index:1;
  grid-column:1/-1;
  margin-top:6px;
  font-size:12.5px;
  color:rgba(255,255,255,.72);
}
.cta-legal a{color:rgba(255,255,255,.9);text-decoration:underline;text-underline-offset:4px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:var(--section-gap);
  padding:72px 0 28px;
  background:var(--ink);
  color:rgba(255,255,255,.88);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:var(--grad);
}
.footer-top{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.site-footer .brand-text{color:#fff}
.site-footer .brand-sub{background:rgba(255,255,255,.12);color:#fff}
.footer-desc{
  margin-top:16px;
  max-width:26ch;
  font-size:14px;
  line-height:1.7;
  color:rgba(255,255,255,.64);
}
.footer-qr{
  display:flex;
  align-items:center;
  gap:12px;
  margin-top:20px;
  font-size:12.5px;
  line-height:1.6;
  color:rgba(255,255,255,.58);
}
.qr-box{
  width:76px;height:76px;
  flex:0 0 auto;
  border-radius:14px;
  background:#fff;
  overflow:hidden;
}
.qr-box svg{width:100%;height:100%}
.footer-col strong{
  display:block;
  margin-bottom:14px;
  font-size:15px;
  font-weight:700;
  color:#fff;
}
.footer-col ul{display:grid;gap:10px}
.footer-col a{
  display:inline-block;
  font-size:14px;
  color:rgba(255,255,255,.64);
  text-decoration:none;
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.footer-bottom p{font-size:13px}
.footer-bottom a{color:rgba(255,255,255,.5);text-decoration:none}
.footer-bottom a:hover{color:#fff}
.footer-legal{
  margin-top:14px;
  font-size:12.5px;
  line-height:1.8;
  color:rgba(255,255,255,.38);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--section-gap:76px}
  .hero-grid{gap:36px}
  .nav-link{padding:0 11px;font-size:13.5px}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .faq-layout{gap:36px}
  .cta-panel{padding:42px 34px;gap:32px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .nav-shell{height:60px;padding:0 10px 0 14px}
  .nav-cta{padding:0 14px;font-size:13px}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .hero-panel{max-width:520px}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px}
  .flow-grid{grid-template-columns:minmax(0,1fr);gap:20px}
  .flow-grid::before{display:none}
  .flow-item{padding:20px 22px;border-radius:var(--r-md);background:#fff;border:1px solid var(--line)}
  .flow-num{font-size:34px;background-color:#fff}
  .faq-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:36px 26px}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:820px){
  .timeline::before{left:7px}
  .tl-item{grid-template-columns:minmax(0,1fr);padding-left:34px;column-gap:0}
  .tl-item::before{left:0;top:8px;width:14px;height:14px}
  .tl-date{text-align:left;padding-top:0;margin-bottom:10px;display:flex;align-items:baseline;gap:10px}
  .tl-ver{font-size:17px}
  .tl-day{margin-top:0}
  .focus-grid{grid-template-columns:minmax(0,1fr)}
  .timeline-note{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:768px){
  :root{--section-gap:60px}
  .container{padding:0 18px}
  .page-hero{padding:20px 0 56px}
  .hero-lead{font-size:16px}
  .stats-band{padding:28px 22px 22px;border-radius:var(--r-md)}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .stat-item{padding:16px 14px}
  .tl-card{padding:20px 18px}
  .tl-item.is-latest .tl-card{padding:19px 17px}
  .cta-panel{border-radius:30px}
  .page-title{font-size:clamp(1.85rem,7vw,2.4rem)}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .nav-shell{height:56px;gap:8px}
  .brand-mark{width:32px;height:32px;font-size:15px;border-radius:10px}
  .brand-text{font-size:15px}
  .brand-sub{display:none}
  .nav-cta{padding:0 12px;height:40px;font-size:12.5px}
  .nav-cta svg{display:none}
  .mobile-menu{left:12px;right:12px;top:76px}
  .hero-panel{padding:20px}
  .stats-grid{grid-template-columns:minmax(0,1fr)}
  .focus-body{padding:20px 18px 22px}
  .cta-panel{padding:30px 20px;border-radius:26px}
  .dl-btn{min-height:58px;padding:0 16px;font-size:14px}
  .footer-top{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .faq-item summary{font-size:15px;padding:18px 0}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category4 */
:root{
  --purple:#5B3DF5;
  --purple-deep:#3B22B8;
  --purple-soft:#EDE8FF;
  --purple-line:#D8CCFF;
  --coral:#FF6A3D;
  --coral-deep:#C2410C;
  --coral-soft:#FFF0E9;
  --mint:#12B886;
  --mint-soft:#E6F7F1;
  --star:#FFB020;
  --danger:#D92D20;
  --cream:#FFF8F3;
  --white:#FFFFFF;
  --lilac:#F7F4FF;
  --dark:#171022;
  --dark-2:#241A33;
  --ink:#1E1729;
  --ink-2:#6F6579;
  --ink-3:#A79FB0;
  --line:#F0E3DA;
  --line-dark:rgba(255,255,255,.14);
  --grad:linear-gradient(135deg,#5B3DF5 0%,#8B5CF6 45%,#FF6A3D 100%);
  --grad-btn:linear-gradient(135deg,#4B2FE0 0%,#7A4DFF 100%);
  --r-xl:40px;
  --r-lg:32px;
  --r-md:28px;
  --r-sm:18px;
  --r-xs:14px;
  --shadow:0 20px 50px -30px rgba(23,16,34,.35);
  --shadow-hover:0 28px 60px -28px rgba(91,61,245,.28);
  --shadow-nav:0 12px 30px -18px rgba(23,16,34,.25);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans CN","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--cream);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:3px solid #C9BAFF;outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--tight{padding:56px 0}
.section-head{max-width:640px;margin-bottom:36px}
.section-head h2{font-size:clamp(1.7rem,3vw,2.5rem);line-height:1.2;font-weight:700;letter-spacing:-.2px}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:16px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--purple-soft);color:var(--purple-deep);font-size:13px;font-weight:600;margin-bottom:16px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad)}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:12px;z-index:80;padding:0 16px;margin-bottom:6px}
.nav-shell{
  max-width:var(--container);
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 14px 0 16px;
  border-radius:999px;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-nav);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--grad-btn);color:#fff;
  display:grid;place-items:center;
  font-size:17px;font-weight:800;line-height:1;
  box-shadow:0 10px 20px -12px rgba(91,61,245,.95);
}
.brand-text{display:flex;align-items:center;gap:6px;font-size:16px;font-weight:800;letter-spacing:.2px;color:var(--ink)}
.brand-sub{font-size:11px;font-weight:600;color:var(--purple-deep);background:var(--purple-soft);padding:2px 7px;border-radius:999px;letter-spacing:0}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--ink-2);
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--purple-soft);color:var(--purple-deep)}
.nav-link.is-active{background:var(--purple-soft);color:var(--purple-deep)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:4px;
  width:4px;height:4px;border-radius:50%;
  background:var(--grad);transform:translateX(-50%);
}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  height:44px;padding:0 18px;border-radius:999px;
  background:var(--grad-btn);color:#fff;
  font-size:14px;font-weight:700;
  box-shadow:0 12px 24px -14px rgba(91,61,245,.9);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
  flex:0 0 auto;
}
.nav-cta:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 18px 30px -14px rgba(91,61,245,.95)}
.nav-cta:active{transform:scale(.98)}
.nav-cta svg{width:16px;height:16px}
.menu-btn{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  cursor:pointer;margin-left:auto;
  transition:background .2s ease,border-color .2s ease;
}
.menu-btn:hover{background:var(--purple-soft);border-color:var(--purple-line)}
.menu-btn svg{width:20px;height:20px}
.mobile-panel{
  display:none;
  max-width:var(--container);
  margin:10px auto 0;
  background:#fff;
  border:1px solid var(--line);
  border-radius:24px;
  box-shadow:var(--shadow);
  padding:10px 14px 16px;
}
.mobile-panel.is-open{display:block}
.mobile-panel a.m-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 6px;font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.m-link:last-of-type{border-bottom:0}
.mobile-panel a.m-link span{color:var(--ink-3);font-size:13px}
.mobile-panel a.m-link:hover{color:var(--purple-deep)}
.mobile-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  margin-top:12px;height:48px;border-radius:999px;
  background:var(--grad-btn);color:#fff;font-weight:700;font-size:15px;
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:linear-gradient(180deg,#FFF8F3 0%,#F7F4FF 100%);
  padding:64px 0 72px;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.15;
  -webkit-mask-image:linear-gradient(180deg,#000 30%,transparent 100%);
  mask-image:linear-gradient(180deg,#000 30%,transparent 100%);
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  top:-140px;right:-160px;width:520px;height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(91,61,245,.18) 0%,rgba(91,61,245,0) 70%);
  pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-copy h1{
  font-size:clamp(2.1rem,4.6vw,3.5rem);
  line-height:1.12;
  font-weight:800;
  letter-spacing:-.5px;
}
.hero-copy h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:16px;font-size:17px;color:var(--ink-2);max-width:520px}
.search-box{
  display:flex;align-items:center;gap:8px;
  margin-top:28px;max-width:560px;
  padding:6px 6px 6px 16px;
  background:#fff;border:1px solid var(--line);
  border-radius:18px;box-shadow:var(--shadow);
}
.search-box svg{width:18px;height:18px;color:var(--ink-3);flex:0 0 auto}
.search-box input{
  flex:1;min-width:0;height:44px;border:0;outline:none;
  background:transparent;font-size:15px;color:var(--ink);font-family:inherit;
}
.search-box input::placeholder{color:var(--ink-3)}
.search-box button{
  height:44px;padding:0 20px;border:0;border-radius:12px;
  background:var(--grad-btn);color:#fff;
  font-size:14px;font-weight:700;cursor:pointer;
  transition:filter .2s ease,transform .2s ease;
}
.search-box button:hover{filter:brightness(1.08)}
.search-box button:active{transform:scale(.98)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  min-height:36px;padding:6px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--ink-2);
  cursor:pointer;transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;
}
.chip:hover{border-color:var(--purple-line);color:var(--purple-deep);transform:translateY(-1px)}
.chip.is-active{background:var(--purple-soft);border-color:var(--purple-line);color:var(--purple-deep)}
.hero-visual{position:relative}
.hero-shot{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:var(--dark);
  box-shadow:0 34px 70px -40px rgba(23,16,34,.65);
  border:1px solid rgba(255,255,255,.4);
  aspect-ratio:4/3;
}
.hero-shot img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;left:-18px;bottom:26px;
  display:flex;align-items:center;gap:10px;
  padding:12px 18px;border-radius:var(--r-sm);
  background:#fff;border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.hero-float strong{font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-float span{font-size:12px;color:var(--ink-2);line-height:1.4}

/* ---------- Quick cards ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.quick-card{
  display:flex;gap:18px;align-items:flex-start;
  padding:28px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--line);
  box-shadow:0 18px 40px -34px rgba(23,16,34,.5);
  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(--purple-line)}
.quick-icon{
  flex:0 0 auto;width:48px;height:48px;border-radius:14px;
  background:var(--grad-btn);color:#fff;display:grid;place-items:center;
  box-shadow:0 12px 24px -14px rgba(91,61,245,.9);
}
.quick-icon svg{width:22px;height:22px}
.quick-card h3{font-size:19px;font-weight:700;line-height:1.4}
.quick-card p{margin-top:8px;font-size:15px;color:var(--ink-2)}
.quick-more{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:14px;font-size:14px;font-weight:700;color:var(--purple-deep);
}
.quick-more svg{width:15px;height:15px;transition:transform .2s ease}
.quick-card:hover .quick-more svg{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-aside h2{font-size:clamp(1.7rem,3vw,2.3rem);line-height:1.2;font-weight:700}
.faq-aside p{margin-top:14px;color:var(--ink-2);font-size:15px}
.support-card{
  margin-top:24px;padding:22px;border-radius:var(--r-sm);
  background:var(--coral-soft);border:1px solid #FFDCCD;
}
.support-card strong{display:block;font-size:15px;font-weight:700;color:var(--coral-deep)}
.support-card span{display:block;margin-top:6px;font-size:14px;color:var(--ink-2);line-height:1.7}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:8px 28px;box-shadow:var(--shadow)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--purple-deep)}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;color:var(--purple);
  transition:transform .25s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-item[open] summary{color:var(--purple-deep)}
.faq-answer{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-answer p+p{margin-top:10px}

/* ---------- Contact form ---------- */
.contact-section{background:var(--lilac)}
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start}
.contact-intro h2{font-size:clamp(1.7rem,3vw,2.3rem);line-height:1.2;font-weight:700}
.contact-intro p{margin-top:14px;color:var(--ink-2);font-size:15px}
.contact-list{margin-top:24px;display:grid;gap:12px}
.contact-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:14px;color:var(--ink-2);
}
.contact-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;
  border-radius:50%;background:var(--grad);
}
.contact-note{
  margin-top:24px;padding:16px 18px;border-radius:var(--r-xs);
  background:var(--mint-soft);border:1px solid #BFEBDC;
  font-size:13px;color:#0B7A5B;line-height:1.7;
}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:32px;box-shadow:var(--shadow);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;min-width:0}
.field--full{grid-column:1/-1}
.field label{font-size:13px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;min-width:0;height:50px;
  border:1px solid var(--line);border-radius:var(--r-xs);
  background:#fff;color:var(--ink);
  padding:0 14px;font-size:15px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:132px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--purple-line)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:#B9A6FF;
  box-shadow:0 0 0 4px rgba(91,61,245,.14);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236F6579' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:16px;padding-right:40px}
.check-row{display:flex;align-items:flex-start;gap:10px;margin-top:20px}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--purple);flex:0 0 auto}
.check-row label{font-size:13px;color:var(--ink-2);line-height:1.7}
.check-row a{color:var(--purple-deep);text-decoration:underline;text-underline-offset:3px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border:0;border-radius:999px;
  font-size:16px;font-weight:700;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease;
}
.btn-primary{background:var(--grad-btn);color:#fff;box-shadow:0 16px 32px -18px rgba(91,61,245,.9)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 22px 40px -18px rgba(91,61,245,.95)}
.btn-primary:active{transform:scale(.985)}
.btn-ghost{background:#fff;color:var(--purple-deep);border:1.5px solid var(--purple-line)}
.btn-ghost:hover{background:var(--purple-soft);border-color:var(--purple)}
.btn-block{width:100%;margin-top:24px}
.form-hint{margin-top:12px;font-size:12px;color:var(--ink-3);text-align:center}

/* ---------- Download CTA ---------- */
.download-cta{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  background:var(--dark);
  color:#fff;
  padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 40px 80px -50px rgba(23,16,34,.9);
}
.download-cta::before{
  content:"";position:absolute;top:-120px;right:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(91,61,245,.55) 0%,rgba(91,61,245,0) 70%);
}
.download-cta::after{
  content:"";position:absolute;bottom:-160px;left:-60px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,61,.4) 0%,rgba(255,106,61,0) 70%);
}
.download-copy{position:relative;max-width:560px}
.download-copy h2{font-size:clamp(1.6rem,2.6vw,2.2rem);line-height:1.25;font-weight:700;color:#fff}
.download-copy p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.64)}
.download-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}
.btn-light{background:#fff;color:var(--ink);box-shadow:0 16px 34px -20px rgba(0,0,0,.7)}
.btn-light:hover{transform:translateY(-2px);filter:brightness(1.02)}
.btn-dark-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.32)}
.btn-dark-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;
  margin-top:96px;
  background:var(--dark);
  color:rgba(255,255,255,.88);
  padding-top:72px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);
}
.footer-top{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:52px;
  border-bottom:1px solid var(--line-dark);
}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-sub{background:rgba(255,255,255,.12);color:#fff}
.footer-desc{margin-top:16px;font-size:14px;color:rgba(255,255,255,.64);max-width:260px;line-height:1.7}
.footer-qr{display:flex;align-items:center;gap:14px;margin-top:22px}
.qr-box{width:78px;height:78px;border-radius:14px;overflow:hidden;background:#fff;padding:6px;flex:0 0 auto}
.qr-box svg{width:100%;height:100%;display:block}
.footer-qr span{font-size:13px;color:rgba(255,255,255,.6);line-height:1.6}
.footer-col strong{display:block;font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.64);transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:24px 0 32px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:#fff}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .hero-inner{gap:32px}
  .faq-wrap{gap:32px}
  .contact-grid{gap:28px}
  .section{padding:76px 0}
}
@media (max-width:900px){
  .nav-links,.nav-cta{display:none}
  .menu-btn{display:inline-flex}
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{order:-1;max-width:520px}
  .hero-float{left:auto;right:12px;bottom:12px}
  .faq-wrap{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .download-cta{flex-direction:column;align-items:flex-start;padding:40px 32px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .section--tight{padding:40px 0}
  .page-hero{padding:44px 0 52px}
  .container{padding:0 18px}
  .quick-grid{grid-template-columns:1fr;gap:16px}
  .form-grid{grid-template-columns:1fr}
  .faq-list{padding:4px 20px}
  .form-card{padding:24px}
  .hero-shot{aspect-ratio:16/11}
  .site-footer{margin-top:64px;padding-top:56px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .nav-shell{height:56px;padding:0 10px 0 12px}
  .brand-mark{width:32px;height:32px;border-radius:10px;font-size:15px}
  .brand-text{font-size:15px}
  .brand-sub{display:none}
  .page-hero{padding:36px 0 44px}
  .hero-sub{font-size:15px}
  .search-box{flex-wrap:wrap;padding:10px}
  .search-box input{height:40px;width:100%;flex:1 1 100%}
  .search-box button{width:100%;height:42px}
  .quick-card{flex-direction:column;gap:14px;padding:22px}
  .download-cta{padding:32px 22px;border-radius:28px}
  .download-actions{width:100%}
  .download-actions .btn{width:100%}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-list{padding:0 16px;border-radius:22px}
  .form-card{padding:20px;border-radius:22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}