/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',-apple-system,BlinkMacSystemFont,sans-serif;color:#1a1a2e;background:#fff;line-height:1.6;overflow-x:hidden}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
button{border:none;background:none;cursor:pointer;font-family:inherit}

/* ===== 变量 ===== */
:root{
  --primary:#1677ff;
  --primary-dark:#0958d9;
  --accent:#ff8c1a;
  --accent-dark:#f57c00;
  --text:#1a1a2e;
  --text-muted:#6b7280;
  --border:#e5e7eb;
  --bg-alt:#f8fafc;
  --radius:16px;
  --shadow-sm:0 2px 8px rgba(0,0,0,.06);
  --shadow-md:0 8px 24px rgba(0,0,0,.08);
  --shadow-lg:0 20px 48px rgba(0,0,0,.12);
}

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

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;font-weight:600;transition:all .25s;cursor:pointer;white-space:nowrap;border:1px solid transparent}
.btn-sm{height:36px;padding:0 18px;font-size:14px}
.btn-lg{height:48px;padding:0 32px;font-size:16px}
.btn-primary{background:linear-gradient(135deg,var(--accent),#ff6b00);color:#fff;box-shadow:0 8px 24px rgba(255,140,26,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(255,140,26,.45)}
.btn-outline-light{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.25);backdrop-filter:blur(8px)}
.btn-outline-light:hover{background:rgba(255,255,255,.15)}
.w-full{width:100%}

/* ===== 徽章 ===== */
.badge{display:inline-flex;align-items:center;padding:6px 16px;border-radius:999px;font-size:14px;font-weight:500;border:1px solid}
.badge-hero{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);color:rgba(255,255,255,.9);backdrop-filter:blur(8px)}
.badge-primary{background:rgba(22,119,255,.06);border-color:rgba(22,119,255,.2);color:var(--primary)}
.badge-accent{background:rgba(255,140,26,.06);border-color:rgba(255,140,26,.2);color:var(--accent)}

/* ===== 导航栏 ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;transition:all .3s;background:transparent}
.header.scrolled{background:rgba(255,255,255,.88);backdrop-filter:blur(16px);box-shadow:0 2px 12px rgba(0,0,0,.06);border-bottom:1px solid rgba(0,0,0,.05)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-icon{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(22,119,255,.3);flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-name{font-weight:700;font-size:17px;color:var(--text)}
.header:not(.scrolled) .logo-name{color:#fff}
.logo-sub{font-size:11px;color:var(--text-muted)}
.header:not(.scrolled) .logo-sub{color:rgba(255,255,255,.6)}

.nav-desktop{display:flex;align-items:center;gap:4px}
.nav-link{padding:8px 16px;border-radius:8px;font-size:14px;font-weight:500;color:var(--text-muted);transition:all .2s}
.header:not(.scrolled) .nav-link{color:rgba(255,255,255,.75)}
.nav-link:hover,.nav-link.active{color:var(--primary);background:rgba(22,119,255,.08)}
.header:not(.scrolled) .nav-link:hover,.header:not(.scrolled) .nav-link.active{color:#fff;background:rgba(255,255,255,.12)}

.header-cta{display:flex;align-items:center;gap:12px}
.menu-toggle{display:none;flex-direction:column;gap:5px;padding:8px}
.menu-toggle span{width:22px;height:2px;background:var(--text);border-radius:2px;transition:all .3s}
.header:not(.scrolled) .menu-toggle span{background:#fff}

.scroll-progress{height:2px;background:linear-gradient(90deg,var(--primary),var(--accent),var(--primary));background-size:200% 100%;width:0;transition:width .1s;opacity:0}
.header.scrolled .scroll-progress{opacity:1}

/* ===== 移动端抽屉 ===== */
.mobile-drawer{position:fixed;inset:0;z-index:2000;visibility:hidden;opacity:0;transition:opacity .3s}
.mobile-drawer.open{visibility:visible;opacity:1}
.drawer-mask{position:absolute;inset:0;background:rgba(0,0,0,.5)}
.drawer-panel{position:absolute;top:0;right:0;width:82%;max-width:340px;height:100%;background:#fff;transform:translateX(100%);transition:transform .3s;display:flex;flex-direction:column}
.mobile-drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;gap:10px;padding:20px;border-bottom:1px solid var(--border)}
.drawer-head .font-bold{font-weight:700;font-size:16px;flex:1}
.drawer-close{font-size:24px;color:var(--text-muted);width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:8px}
.drawer-close:hover{background:#f3f4f6}
.drawer-nav{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:14px 16px;border-radius:10px;font-size:16px;font-weight:500;color:var(--text);transition:all .2s}
.drawer-nav a:hover{background:rgba(22,119,255,.06);color:var(--primary)}
.drawer-foot{padding:16px;border-top:1px solid var(--border)}

/* ===== Hero ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:linear-gradient(135deg,#0a1628 0%,#0f1e3a 50%,#1a2f5c 100%);overflow:hidden;padding-top:80px;padding-bottom:60px}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.hero-blur{position:absolute;border-radius:50%;filter:blur(80px);opacity:.4}
.hero-blur-1{width:380px;height:380px;background:var(--primary);top:60px;left:-80px}
.hero-blur-2{width:380px;height:380px;background:var(--accent);bottom:60px;right:-80px}
.hero-grid{position:absolute;inset:0;opacity:.15;background-image:radial-gradient(circle,rgba(255,255,255,.3) 1px,transparent 1px);background-size:30px 30px}

.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;width:100%}
.hero-left{text-align:left}
.hero-title{font-size:clamp(32px,5vw,56px);font-weight:800;color:#fff;line-height:1.15;margin:20px 0 24px}
.gradient-text{background:linear-gradient(90deg,var(--accent),#ffb74d,var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-desc{font-size:17px;color:rgba(255,255,255,.7);line-height:1.8;max-width:540px;margin-bottom:32px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.tag{padding:6px 14px;border-radius:8px;font-size:13px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);color:rgba(255,255,255,.85);backdrop-filter:blur(8px)}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}

.hero-right{position:relative;display:flex;justify-content:center}
.hero-glow{position:absolute;inset:-40px;background:linear-gradient(135deg,rgba(22,119,255,.3),rgba(255,140,26,.2),transparent);border-radius:50%;filter:blur(50px);opacity:.6}
.hero-img-wrap{position:relative;border-radius:24px;overflow:hidden;box-shadow:0 30px 60px rgba(0,0,0,.4);width:100%;max-width:560px}
.hero-img{width:100%;aspect-ratio:21/9;object-fit:cover}
.hero-img-wrap::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(10,22,40,.5),transparent 50%);pointer-events:none}
.hero-price{position:absolute;bottom:-16px;right:-16px;background:linear-gradient(135deg,var(--accent),#ff6b00);color:#fff;padding:12px 22px;border-radius:16px;box-shadow:0 12px 32px rgba(255,140,26,.5);z-index:3}
.price-label{font-size:12px;opacity:.85}
.price-num{font-size:26px;font-weight:800;line-height:1.2}

.float{animation:float 5s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

.scroll-hint{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:6px;color:rgba(255,255,255,.5);font-size:12px;z-index:2}
.scroll-arrow{animation:bounce 1.8s ease-in-out infinite}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

/* ===== 通用 Section ===== */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-head{text-align:center;max-width:680px;margin:0 auto 64px}
.section-title{font-size:clamp(28px,4vw,44px);font-weight:800;color:var(--text);margin:16px 0 16px;line-height:1.2}
.section-sub{font-size:17px;color:var(--text-muted);line-height:1.7}

/* ===== 产品介绍 ===== */
.product-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;margin-bottom:80px}
.product-img-col{position:relative}
.product-img-bg{position:absolute;inset:-24px;background:linear-gradient(135deg,rgba(22,119,255,.1),rgba(255,140,26,.05),transparent);border-radius:32px;filter:blur(20px);pointer-events:none}
.product-img-wrap{position:relative;border-radius:24px;overflow:hidden;border:1px solid var(--border);background:linear-gradient(135deg,#f8fafc,#fff);box-shadow:var(--shadow-md)}
.product-img{width:100%;aspect-ratio:4/3;object-fit:cover}
.product-price-tag{position:absolute;bottom:-20px;left:-20px;background:linear-gradient(135deg,var(--accent),#ff6b00);color:#fff;padding:16px 24px;border-radius:18px;box-shadow:0 12px 32px rgba(255,140,26,.4)}
.tag-label{font-size:12px;opacity:.9}
.tag-price{font-size:32px;font-weight:900;line-height:1.1}
.tag-desc{font-size:12px;opacity:.9;margin-top:2px}

.feature-title{font-size:28px;font-weight:700;margin-bottom:24px;color:var(--text)}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.feature-card{padding:20px;border-radius:14px;border:1px solid var(--border);background:#fff;transition:all .3s}
.feature-card:hover{border-color:rgba(22,119,255,.3);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.feature-icon{width:40px;height:40px;border-radius:12px;background:rgba(22,119,255,.1);color:var(--primary);display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.feature-name{font-weight:600;font-size:15px;margin-bottom:4px;color:var(--text)}
.feature-desc{font-size:13px;color:var(--text-muted);line-height:1.5}

/* 三步使用 */
.steps-wrap{text-align:center}
.steps-title{font-size:28px;font-weight:700;margin-bottom:8px;color:var(--text)}
.steps-sub{color:var(--text-muted);margin-bottom:40px}
.steps-grid{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:20px;align-items:stretch}
.step-card{padding:32px 28px;border-radius:18px;border:1px solid var(--border);background:#fff;transition:all .3s;text-align:center}
.step-card:hover{border-color:rgba(22,119,255,.3);box-shadow:var(--shadow-md)}
.step-num{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;margin:0 auto 20px;box-shadow:0 8px 20px rgba(22,119,255,.3)}
.step-name{font-size:18px;font-weight:700;margin-bottom:8px;color:var(--text)}
.step-desc{font-size:14px;color:var(--text-muted);line-height:1.6}
.step-arrow{display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--primary);font-weight:700}

/* ===== 场景卡片 ===== */
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.scenario-card{position:relative;padding:36px 32px;border-radius:20px;border:1px solid var(--border);background:#fff;overflow:hidden;transition:all .4s;cursor:default}
.scenario-card::before{content:'';position:absolute;top:0;right:0;width:160px;height:160px;background:radial-gradient(circle,var(--accent),transparent 70%);opacity:.06;pointer-events:none}
.scenario-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.scenario-icon{width:60px;height:60px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin-bottom:24px;box-shadow:0 6px 16px rgba(0,0,0,.1)}
.scenario-icon-blue{background:rgba(22,119,255,.1);color:var(--primary)}
.scenario-icon-purple{background:rgba(124,58,237,.1);color:#7c3aed}
.scenario-icon-orange{background:rgba(255,140,26,.1);color:var(--accent)}
.scenario-name{font-size:22px;font-weight:700;margin-bottom:6px;color:var(--text)}
.scenario-target{font-size:13px;color:var(--text-muted);margin-bottom:14px}
.scenario-value{font-size:16px;font-weight:600;color:var(--text);margin-bottom:20px;line-height:1.6}
.scenario-tags{display:flex;flex-wrap:wrap;gap:8px}
.mini-tag{padding:4px 12px;border-radius:6px;font-size:12px;background:#f3f4f6;color:var(--text-muted);border:1px solid var(--border)}

/* ===== 海量资源 ===== */
.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:56px}
.resource-card{padding:32px 28px;border-radius:18px;border:1px solid var(--border);background:#fff;text-align:center;transition:all .3s}
.resource-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(22,119,255,.2)}
.resource-emoji{font-size:40px;margin-bottom:16px}
.resource-name{font-size:18px;font-weight:700;margin-bottom:6px;color:var(--text)}
.resource-count{font-size:22px;font-weight:800;color:var(--primary);margin-bottom:8px}
.resource-desc{font-size:13px;color:var(--text-muted);line-height:1.5}

.resource-highlights{display:flex;align-items:center;justify-content:center;gap:48px;padding:40px;border-radius:20px;background:linear-gradient(135deg,rgba(22,119,255,.04),rgba(255,140,26,.04));border:1px solid var(--border)}
.highlight-item{text-align:center}
.highlight-num{font-size:32px;font-weight:800;color:var(--primary);margin-bottom:4px}
.highlight-label{font-size:14px;color:var(--text-muted)}
.highlight-divider{width:1px;height:48px;background:var(--border)}

/* ===== 关于我们 ===== */
.about-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.about-text .section-title{margin-top:16px}
.about-desc{font-size:16px;color:var(--text-muted);line-height:1.9;margin-bottom:32px}
.about-mv{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.mv-item{padding:20px;border-radius:14px;background:var(--bg-alt);border:1px solid var(--border)}
.mv-label{font-size:13px;color:var(--primary);font-weight:600;margin-bottom:6px}
.mv-value{font-size:15px;font-weight:600;color:var(--text);line-height:1.5}

.about-stats{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.stat-card{padding:32px 24px;border-radius:18px;background:#fff;border:1px solid var(--border);text-align:center;transition:all .3s}
.stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.stat-num{font-size:36px;font-weight:800;color:var(--primary);margin-bottom:6px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat-label{font-size:14px;color:var(--text-muted)}

/* ===== 联系我们 ===== */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:48px}
.contact-card{padding:36px 28px;border-radius:18px;border:1px solid var(--border);background:#fff;text-align:center;transition:all .3s}
.contact-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.contact-icon{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px}
.contact-icon-blue{background:rgba(22,119,255,.1);color:var(--primary)}
.contact-icon-orange{background:rgba(255,140,26,.1);color:var(--accent)}
.contact-icon-purple{background:rgba(124,58,237,.1);color:#7c3aed}
.contact-label{font-size:14px;color:var(--text-muted);margin-bottom:8px}
.contact-value{font-size:18px;font-weight:700;color:var(--text);line-height:1.5}
.contact-link{color:var(--primary)}
.contact-link:hover{text-decoration:underline}

.contact-cta{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:40px 48px;border-radius:24px;background:linear-gradient(135deg,#0a1628,#1a2f5c);color:#fff;flex-wrap:wrap}
.cta-text h3{font-size:24px;font-weight:700;margin-bottom:6px}
.cta-text p{font-size:15px;color:rgba(255,255,255,.7)}

/* ===== 页脚 ===== */
.footer{background:#0a1628;color:rgba(255,255,255,.8);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:48px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-logo-name{font-weight:700;font-size:17px;color:#fff}
.footer-logo-sub{font-size:11px;color:rgba(255,255,255,.5)}
.footer-brand-desc{font-size:14px;color:rgba(255,255,255,.55);line-height:1.8}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:20px}
.footer-col ul li{margin-bottom:12px;font-size:14px;color:rgba(255,255,255,.55)}
.footer-col ul li a{transition:color .2s}
.footer-col ul li a:hover{color:var(--accent)}
.footer-contact li{display:flex;align-items:center}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:24px 0}
.footer-copy{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:rgba(255,255,255,.4);margin-bottom:12px;flex-wrap:wrap;gap:8px}
.footer-icp{text-align:center}
.footer-icp a{font-size:12px;color:rgba(255,255,255,.4);transition:color .2s}
.footer-icp a:hover{color:rgba(255,255,255,.7)}

/* ===== 滚动动画 ===== */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-left{opacity:0;transform:translateX(-40px);transition:opacity .7s ease,transform .7s ease}
.reveal-left.visible{opacity:1;transform:translateX(0)}
.reveal-right{opacity:0;transform:translateX(40px);transition:opacity .7s ease,transform .7s ease}
.reveal-right.visible{opacity:1;transform:translateX(0)}
.fade-in-left{animation:fadeInLeft .8s ease both}
.fade-in-right{animation:fadeInRight .8s ease .2s both}
@keyframes fadeInLeft{from{opacity:0;transform:translateX(-40px)}to{opacity:1;transform:translateX(0)}}
@keyframes fadeInRight{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:translateX(0)}}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:48px;text-align:center}
  .hero-left{text-align:center}
  .hero-desc{margin-left:auto;margin-right:auto}
  .hero-tags,.hero-btns{justify-content:center}
  .product-row{grid-template-columns:1fr;gap:48px}
  .about-row{grid-template-columns:1fr;gap:48px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}

@media(max-width:768px){
  .nav-desktop{display:none}
  .menu-toggle{display:flex}
  .header-cta .btn{display:none}
  .section{padding:64px 0}
  .section-head{margin-bottom:40px}
  .hero{min-height:auto;padding-top:100px;padding-bottom:80px}
  .hero-inner{gap:40px}
  .hero-title{font-size:32px}
  .hero-desc{font-size:15px}
  .feature-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr;gap:16px}
  .step-arrow{display:none}
  .scenario-grid{grid-template-columns:1fr}
  .resource-grid{grid-template-columns:1fr}
  .resource-highlights{flex-direction:column;gap:24px;padding:32px 24px}
  .highlight-divider{width:48px;height:1px}
  .about-stats{grid-template-columns:1fr 1fr}
  .about-mv{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .contact-cta{flex-direction:column;text-align:center;padding:32px 24px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-copy{flex-direction:column;text-align:center}
  .product-price-tag{left:0;bottom:-16px;padding:12px 18px}
  .tag-price{font-size:24px}
  .hero-price{right:0;bottom:-12px;padding:10px 16px}
  .price-num{font-size:20px}
  .scroll-hint{display:none}
}

@media(max-width:480px){
  .container{padding:0 16px}
  .hero-btns{flex-direction:column}
  .hero-btns .btn{width:100%}
}