/* ===== KOS Design System ===== */
:root{
  --brand:#229AF4;--btn-start:#898EFF;--btn-end:#5E7DF9;--blue:#2563eb;--purple:#7c3aed;
  --dark:#0a0f1e;--dark2:#131b34;--dark3:#1a2240;--border:#e5e7eb;
  --title-color:#233863;--subtitle-color:#6D7B96;--body-color:#4A4A4A;
  --bg-white:#ffffff;--bg-alt:#F5F7FA;
  --gradient-btn:linear-gradient(135deg,#898EFF 0%,#5E7DF9 100%);
  --gradient-primary:linear-gradient(135deg,#898EFF 0%,#5E7DF9 50%,#229AF4 100%);
  --shadow-sm:0 1px 2px rgba(35,56,99,.04),0 1px 3px rgba(35,56,99,.06);
  --shadow-md:0 4px 8px rgba(35,56,99,.04),0 8px 24px rgba(35,56,99,.06);
  --shadow-lg:0 12px 24px rgba(35,56,99,.06),0 24px 48px rgba(35,56,99,.08);
  --shadow-xl:0 24px 48px rgba(35,56,99,.08),0 48px 96px rgba(35,56,99,.1);
  --shadow-glow:0 0 40px rgba(94,125,249,.25);
  --radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--radius-2xl:32px;--radius-full:9999px;
  --font-sans:'PingFang SC','Microsoft YaHei',-apple-system,BlinkMacSystemFont,sans-serif;
  --blue:#2563eb;--purple:#7c3aed;--text:#1a1a2e;--text2:#4a5568;--muted:#9ca3af;--border:#e5e7eb;
  --success:#10b981;--warning:#f59e0b;--danger:#ef4444;
  --xhs-red:#FF2442;--xhs-pink:#FF5C7A;--xhs-light:#FFF0F3;--xhs-grad:linear-gradient(135deg,#FF2442 0%,#FF5C7A 100%);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);color:var(--body-color);background:var(--bg-white);overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}

/* ===== NAV (from site) ===== */
.nav-wrap{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(0,0,0,.05);transition:box-shadow .3s}
.nav-wrap.scrolled{box-shadow:0 1px 16px rgba(0,0,0,.07)}
.nav{max-width:1280px;margin:0 auto;height:68px;display:flex;align-items:center;padding:0 40px}
.logo{display:flex;align-items:center;gap:10px;cursor:pointer;margin-right:48px;flex-shrink:0}
.logo-icon{width:40px;height:40px;border-radius:10px;object-fit:cover;flex-shrink:0;box-shadow:0 4px 12px rgba(37,99,235,.2)}
.logo-text{font-size:20px;font-weight:700;color:var(--text);letter-spacing:.5px}
.logo-text span{color:var(--blue)}
.nav-items{display:flex;align-items:center;gap:2px;flex:1}
.nav-item{position:relative}
.nav-link{display:flex;align-items:center;gap:4px;padding:8px 16px;font-size:15px;color:var(--text2);border-radius:8px;cursor:pointer;transition:all .2s;font-weight:500;white-space:nowrap}
.nav-link:hover{color:var(--blue);background:rgba(37,99,235,.06)}
.nav-link.active{color:var(--blue);font-weight:600}
.nav-link.active::after{content:'';position:absolute;bottom:-22px;left:50%;transform:translateX(-50%);width:24px;height:3px;background:linear-gradient(90deg,var(--blue),var(--purple));border-radius:2px}
.nav-arrow{font-size:9px;transition:transform .25s;margin-top:1px;opacity:.6}
.nav-item:hover .nav-arrow{transform:rotate(180deg);opacity:1}
.dropdown{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(-12px);margin-top:10px;background:#fff;border-radius:16px;box-shadow:0 20px 50px rgba(0,0,0,.12),0 8px 20px rgba(0,0,0,.06);border:1px solid rgba(0,0,0,.04);width:620px;padding:0;opacity:0;visibility:hidden;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;overflow:hidden}
.dropdown::before{content:'';position:absolute;top:-12px;left:0;right:0;height:12px}
.nav-item:hover .dropdown{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.dropdown-left{width:50%;padding:28px;border-right:1px solid #f0f2f5}
.dropdown-header{font-size:13px;color:var(--muted);margin-bottom:20px;font-weight:500;letter-spacing:.5px}
.product-list{display:flex;flex-direction:column;gap:18px}
.product-item{display:flex;align-items:flex-start;gap:14px;color:var(--text);padding:4px 0;border-radius:8px;transition:all .2s}
.product-item:hover .product-title{color:var(--blue)}
.product-item:hover .product-icon{background:#eff6ff}
.product-icon{width:40px;height:40px;border-radius:10px;background:#f8fafc;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .2s}
.product-icon svg{width:22px;height:22px;stroke:var(--blue);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.product-title{font-size:15px;font-weight:600;color:var(--text);margin-bottom:4px;transition:color .2s}
.product-subtitle{font-size:13px;color:var(--muted);line-height:1.5}
.dropdown-right{width:50%;padding:28px;background:#f8fafc}
.video-section{margin-bottom:26px}
.video-title{font-size:15px;font-weight:600;color:var(--text);margin-bottom:14px}
.video-thumb{width:100%;aspect-ratio:16/9;background:linear-gradient(135deg,#3b82f6,#7c3aed);border-radius:12px;display:flex;align-items:center;justify-content:center;position:relative;cursor:pointer;overflow:hidden;transition:transform .25s,box-shadow .25s}
.video-thumb:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(59,130,246,.3)}
.video-thumb::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.2),transparent 60%)}
.video-thumb::after{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:24px 24px}
.play-btn{width:48px;height:48px;background:rgba(255,255,255,.95);border-radius:50%;display:flex;align-items:center;justify-content:center;position:relative;z-index:2;box-shadow:0 4px 16px rgba(0,0,0,.15);transition:transform .2s}
.video-thumb:hover .play-btn{transform:scale(1.08)}
.play-btn svg{width:16px;height:16px;fill:#3b82f6;margin-left:2px}
.video-badge{position:absolute;top:10px;right:12px;background:rgba(0,0,0,.35);color:#fff;font-size:11px;padding:3px 8px;border-radius:4px;z-index:2}
.video-label{position:absolute;bottom:10px;left:12px;color:#fff;font-size:12px;z-index:2;text-shadow:0 1px 2px rgba(0,0,0,.2)}
.article-link{display:flex;align-items:center;gap:12px;padding:10px;border-radius:10px;transition:background .2s}
.article-link:hover{background:#fff}
.article-icon{width:40px;height:40px;background:#eff6ff;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.article-icon svg{width:20px;height:20px;stroke:var(--blue);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.article-content{flex:1;min-width:0}
.article-title{font-size:14px;color:var(--text);font-weight:500;line-height:1.4;margin-bottom:3px}
.article-meta{font-size:12px;color:var(--muted)}
.nav-right{display:flex;align-items:center;flex-shrink:0}
.nav-cta{padding:10px 26px;background:linear-gradient(135deg,var(--blue),var(--purple));color:#fff;border:none;border-radius:9px;font-size:14px;font-weight:600;cursor:pointer;transition:all .25s;box-shadow:0 4px 14px rgba(37,99,235,0.28);display:inline-block}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(37,99,235,0.38)}
.nav-phone{display:flex;align-items:center;gap:6px;margin-right:16px;font-size:15px;font-weight:700;color:var(--text);transition:color .2s;white-space:nowrap;cursor:pointer}
.nav-phone svg{width:18px;height:18px;stroke:var(--blue);stroke-width:2;fill:none}
.nav-phone:hover{color:var(--blue)}
.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
.mobile-toggle span{width:22px;height:2px;background:#333;border-radius:2px;transition:all .3s}

/* ===== BANNER (salessolution.html style - left-right split) ===== */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes floatCard{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes dashFlow{to{stroke-dashoffset:-20}}
@keyframes pulseGlow{0%,100%{opacity:.5}50%{opacity:.8}}
.banner-sec{position:relative;padding:120px 0 80px;overflow:hidden;min-height:600px;background:linear-gradient(180deg,#fff5f6 0%,#fef0ff 50%,#f8f9ff 100%)}
.banner-sec::before{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:900px;height:240px;background:radial-gradient(ellipse at center bottom,rgba(255,36,66,.12),transparent 70%);pointer-events:none}
.banner-sec::after{content:'';position:absolute;top:15%;right:8%;width:140px;height:140px;border-radius:50%;background:radial-gradient(circle,rgba(255,36,66,.08),transparent 70%);pointer-events:none}
.banner-orb{position:absolute;border-radius:50%;pointer-events:none}
.banner-orb-1{width:500px;height:500px;background:radial-gradient(circle,rgba(255,36,66,.05) 0%,transparent 70%);top:-200px;right:-150px}
.banner-orb-2{width:400px;height:400px;background:radial-gradient(circle,rgba(255,92,122,.04) 0%,transparent 70%);bottom:-150px;left:-120px}
.banner-container{max-width:1260px;margin:0 auto;padding:0 24px;position:relative;z-index:1;display:flex;align-items:center;gap:40px}
.banner-left{flex:0 0 42%;text-align:left}
.banner-product{font-size:42px;font-weight:700;line-height:1.3;color:var(--title-color);margin-bottom:20px;animation:fadeInUp .8s ease .1s both}
.banner-product .hl-grad{background:var(--xhs-grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.banner-desc{font-size:17px;font-weight:400;color:var(--title-color);line-height:1.7;margin-bottom:32px;animation:fadeInUp .8s ease .2s both;opacity:.8}
.banner-desc strong{color:var(--xhs-red);font-weight:600}
.banner-cta{animation:fadeInUp .8s ease .3s both}
.banner-cta .btn-xhs{display:inline-block;padding:14px 36px;background:var(--xhs-grad);color:#fff;font-size:16px;font-weight:600;border-radius:45px;border:1px solid rgba(255,36,66,.15);box-shadow:0 8px 24px rgba(255,36,66,.25);transition:all .25s}
.banner-cta .btn-xhs:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(255,36,66,.35);color:#fff}
.banner-cta .btn-xhs-outline{background:#fff;color:var(--xhs-red);border:1.5px solid rgba(255,36,66,.2);box-shadow:0 4px 16px rgba(255,36,66,.06);margin-left:12px}
.banner-cta .btn-xhs-outline:hover{border-color:var(--xhs-pink);color:var(--xhs-pink);box-shadow:0 8px 24px rgba(255,92,122,.15)}
.banner-right{flex:1;position:relative;min-height:520px;animation:fadeInUp 1s ease .4s both;display:flex;align-items:center;justify-content:center}
/* Dashboard mockup */
.xhs-dash{width:100%;max-width:440px;background:#fff;border-radius:20px;box-shadow:0 20px 60px rgba(255,36,66,.12),0 8px 24px rgba(0,0,0,.04);overflow:hidden;border:1px solid rgba(255,36,66,.06);position:relative;z-index:2}
.xhs-dash-header{padding:14px 18px;background:linear-gradient(135deg,#FF2442 0%,#FF5C7A 100%);display:flex;align-items:center;gap:10px}
.xhs-dash-logo{display:flex;align-items:center;gap:6px;color:#fff;font-size:13px;font-weight:600;flex-shrink:0}
.xhs-dash-logo-icon{width:24px;height:24px;background:rgba(255,255,255,.2);border-radius:7px;display:flex;align-items:center;justify-content:center}
.xhs-dash-logo-icon svg{width:14px;height:14px;fill:#fff}
.xhs-dash-search{flex:1;padding:5px 12px;background:rgba(255,255,255,.18);border-radius:16px;font-size:11px;color:rgba(255,255,255,.7);display:flex;align-items:center;gap:6px}
.xhs-dash-search svg{width:12px;height:12px;stroke:rgba(255,255,255,.6);stroke-width:2;fill:none}
.xhs-dash-status{padding:3px 8px;background:rgba(255,255,255,.2);border-radius:5px;font-size:10px;color:#fff;font-weight:500;display:flex;align-items:center;gap:3px;flex-shrink:0}
.xhs-dash-status::before{content:'';width:5px;height:5px;border-radius:50%;background:#4ade80;animation:pulseGlow 2s ease-in-out infinite}
.xhs-dash-body{padding:18px}
.xhs-dash-section-title{font-size:12px;font-weight:600;color:var(--title-color);margin-bottom:12px;display:flex;align-items:center;gap:6px}
.xhs-dash-section-title::before{content:'';width:3px;height:12px;border-radius:2px;background:var(--xhs-grad)}
.xhs-dash-metrics{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px}
.xhs-dash-metric{padding:12px 14px;background:linear-gradient(135deg,#FFF5F6,#fff);border-radius:10px;border:1px solid #FFE0E6}
.xhs-dash-metric-val{font-size:20px;font-weight:800;color:var(--xhs-red);line-height:1.2}
.xhs-dash-metric-label{font-size:10px;color:var(--subtitle-color);margin-top:2px}
.xhs-dash-metric-trend{font-size:9px;color:#10b981;font-weight:600;margin-top:3px}
.xhs-dash-chart{padding:14px;background:#FAFBFC;border-radius:10px;margin-bottom:14px}
.xhs-dash-chart-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.xhs-dash-chart-title{font-size:11px;font-weight:600;color:var(--title-color)}
.xhs-dash-chart-legend{font-size:9px;color:var(--muted);display:flex;align-items:center;gap:4px}
.xhs-dash-chart-legend::before{content:'';width:8px;height:8px;border-radius:2px;background:var(--xhs-grad)}
.xhs-dash-bars{display:flex;align-items:flex-end;gap:5px;height:60px}
.xhs-dash-bar{flex:1;border-radius:3px 3px 0 0;background:var(--xhs-grad);opacity:.5;transition:opacity .3s}
.xhs-dash-bar:hover{opacity:.9}
.xhs-dash-bar.peak{opacity:.85}
.xhs-dash-notes{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.xhs-note{border-radius:8px;overflow:hidden;border:1px solid #f0f2f5;background:#fff;transition:transform .3s}
.xhs-note:hover{transform:translateY(-2px)}
.xhs-note-cover{height:70px;background:linear-gradient(135deg,#FFE0E6,#FFF0F3);display:flex;align-items:center;justify-content:center;position:relative}
.xhs-note-cover svg{width:24px;height:24px;stroke:var(--xhs-red);stroke-width:1.5;fill:none;opacity:.4}
.xhs-note-ad{position:absolute;top:5px;right:5px;padding:1px 5px;background:rgba(255,36,66,.9);color:#fff;font-size:8px;border-radius:3px;font-weight:500}
.xhs-note-info{padding:6px 8px}
.xhs-note-title{font-size:10px;color:var(--title-color);font-weight:500;line-height:1.3;margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.xhs-note-meta{display:flex;align-items:center;gap:3px;font-size:9px;color:var(--muted)}
.xhs-note-avatar{width:12px;height:12px;border-radius:50%;background:var(--xhs-grad);flex-shrink:0}
.xhs-note-like{margin-left:auto;display:flex;align-items:center;gap:2px}
.xhs-note-like svg{width:9px;height:9px;stroke:var(--muted);stroke-width:2;fill:none}
/* Floating data cards */
.xhs-float-card{position:absolute;background:#fff;border-radius:12px;padding:10px 14px;box-shadow:0 8px 20px rgba(255,36,66,.1);border:1px solid rgba(255,36,66,.05);display:flex;align-items:center;gap:8px;z-index:3;animation:floatCard 3s ease-in-out infinite}
.xhs-float-card-tl{top:10px;left:-10px;animation-delay:0s}
.xhs-float-card-tr{top:50px;right:-15px;animation-delay:.6s}
.xhs-float-card-bl{bottom:80px;left:-20px;animation-delay:1.2s}
.xhs-float-card-br{bottom:30px;right:-5px;animation-delay:1.8s}
.xhs-float-icon{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.xhs-float-icon svg{width:18px;height:18px;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.xhs-float-val{font-size:16px;font-weight:800;line-height:1.2}
.xhs-float-label{font-size:10px;color:var(--subtitle-color)}

/* ===== Shared section styles ===== */
.sec-container{max-width:1260px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.sec-header-center{text-align:center;max-width:850px;margin:0 auto 64px}
.sec-label{display:inline-block;font-size:13px;font-weight:600;color:var(--xhs-red);margin-bottom:24px;letter-spacing:2px}
.sec-label svg{width:16px;height:16px}
.sec-title{font-size:40px;font-weight:600;line-height:1.3;color:var(--title-color);margin-bottom:20px}
.sec-desc{font-size:18px;font-weight:400;color:var(--subtitle-color);line-height:1.6}
.hl{color:var(--xhs-red)}
.hl-grad{background:var(--xhs-grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* ===== GROWTH METHODOLOGY (五大场景方案 style) ===== */
.method-sec{background:linear-gradient(180deg,var(--bg-alt) 0%,var(--bg-white) 100%);padding:88px 0;position:relative;overflow:hidden}
.method-sec::before{content:'';position:absolute;top:0;right:0;width:500px;height:500px;background:radial-gradient(circle,rgba(255,36,66,.04) 0%,transparent 70%);pointer-events:none}
.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;position:relative;z-index:1}
.method-card{background:#fff;border-radius:var(--radius-xl);overflow:hidden;border:1px solid #EEF0F6;box-shadow:var(--shadow-sm);transition:all .4s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column}
.method-card:hover{box-shadow:var(--shadow-lg);border-color:rgba(255,36,66,.15);transform:translateY(-6px)}
.method-card-head{padding:24px 24px 20px;position:relative;border-bottom:1px solid #f5f5f8}
.method-card-num{position:absolute;top:16px;right:20px;font-size:40px;font-weight:800;color:rgba(255,36,66,.08);line-height:1}
.method-card-icon{width:48px;height:48px;border-radius:12px;background:var(--xhs-light);display:flex;align-items:center;justify-content:center;margin-bottom:14px;transition:all .3s}
.method-card-icon svg{width:24px;height:24px;stroke:var(--xhs-red);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round;transition:stroke .3s}
.method-card:hover .method-card-icon{background:var(--xhs-grad)}
.method-card:hover .method-card-icon svg{stroke:#fff}
.method-card-title{font-size:18px;font-weight:700;color:var(--title-color);margin-bottom:8px}
.method-card-tag{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;background:rgba(255,36,66,.06);border-radius:var(--radius-full);font-size:11px;font-weight:600;color:var(--xhs-red)}
.method-card-body{padding:20px 24px;flex:1}
.method-block{margin-bottom:16px}
.method-block:last-child{margin-bottom:0}
.method-block-title{font-size:12px;font-weight:700;color:var(--xhs-red);margin-bottom:8px;display:flex;align-items:center;gap:6px}
.method-block-title::before{content:'';width:3px;height:12px;border-radius:2px;background:var(--xhs-grad)}
.method-block-list{list-style:none;padding:0;margin:0}
.method-block-list li{font-size:13px;color:var(--subtitle-color);line-height:1.7;padding-left:16px;position:relative;margin-bottom:4px}
.method-block-list li::before{content:'';position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:rgba(255,36,66,.2)}
.method-card-foot{padding:16px 24px;background:linear-gradient(135deg,#FFF5F6,#fff);border-top:1px solid #FFE0E6;display:flex;align-items:center;gap:8px}
.method-card-foot svg{width:16px;height:16px;stroke:var(--xhs-red);stroke-width:2;fill:none;flex-shrink:0}
.method-card-foot-text{font-size:13px;font-weight:600;color:var(--xhs-red);line-height:1.5}

/* ===== CORE ADVANTAGES (namecard.html 打造销售铁军 style) ===== */
.adv-sec{background:linear-gradient(180deg,var(--bg-white) 0%,var(--bg-alt) 100%);position:relative;padding:88px 0}
.adv-tabs{display:flex;gap:0;position:relative;z-index:1;margin-bottom:48px;border-bottom:2px solid #EEF0F6}
.adv-tab{flex:1;padding:22px 16px;text-align:center;font-size:17px;font-weight:600;color:var(--subtitle-color);cursor:pointer;transition:all .3s;position:relative;background:none;border:none;border-bottom:3px solid transparent;margin-bottom:-2px;font-family:inherit;display:flex;align-items:center;justify-content:center;gap:8px}
.adv-tab:hover{color:var(--xhs-red)}
.adv-tab.active{color:var(--xhs-red);border-bottom-color:var(--xhs-red)}
.adv-tab svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.adv-split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;position:relative;z-index:1}
.adv-split-left{display:flex;flex-direction:column;gap:16px}
.adv-split-item{padding:22px 26px;background:#fff;border-radius:var(--radius-lg);border:1px solid #EEF0F6;transition:all .3s}
.adv-split-item:hover{transform:translateX(6px);box-shadow:var(--shadow-md);border-color:rgba(255,36,66,.15)}
.adv-split-item h4{font-size:16px;font-weight:700;color:var(--title-color);margin-bottom:8px;display:flex;align-items:center;gap:10px}
.adv-split-item h4::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--xhs-grad);flex-shrink:0;box-shadow:0 0 0 3px rgba(255,36,66,.1)}
.adv-split-item p{font-size:14px;color:var(--subtitle-color);line-height:1.7}
.adv-split-right{background:#fff;border-radius:var(--radius-2xl);padding:32px;border:1px solid #EEF0F6;box-shadow:var(--shadow-md);min-height:380px;display:flex;flex-direction:column}
.adv-panel{display:none}
.adv-panel.active{display:flex;flex-direction:column;gap:16px;animation:fadePanel .4s ease}
@keyframes fadePanel{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
/* Panel mockup elements */
.adv-mock-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid #f0f2f5}
.adv-mock-title{font-size:15px;font-weight:600;color:var(--title-color);display:flex;align-items:center;gap:8px}
.adv-mock-title svg{width:18px;height:18px;stroke:var(--xhs-red);stroke-width:2;fill:none}
.adv-mock-badge{font-size:12px;font-weight:600;color:var(--xhs-red);background:rgba(255,36,66,.08);padding:4px 12px;border-radius:var(--radius-sm)}
.adv-mock-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:20px}
.adv-mock-stat{text-align:center;padding:16px 8px;background:var(--bg-alt);border-radius:var(--radius-md);border:1px solid #f0f2f5}
.adv-mock-stat-num{font-size:24px;font-weight:800;color:var(--xhs-red);line-height:1.2}
.adv-mock-stat-label{font-size:11px;color:var(--subtitle-color);margin-top:4px}
.adv-mock-chart{display:flex;align-items:flex-end;gap:10px;height:120px;margin-bottom:20px;padding:0 4px}
.adv-mock-bar{flex:1;border-radius:6px 6px 0 0;background:var(--xhs-grad);opacity:.5;transition:opacity .3s;position:relative}
.adv-mock-bar:hover{opacity:1}
.adv-mock-bar-label{position:absolute;bottom:-22px;left:50%;transform:translateX(-50%);font-size:10px;color:var(--muted);white-space:nowrap}
.adv-mock-list{display:flex;flex-direction:column;gap:10px}
.adv-mock-list-item{display:flex;align-items:center;gap:12px;padding:12px 14px;background:var(--bg-alt);border-radius:var(--radius-md);border:1px solid #f0f2f5}
.adv-mock-list-icon{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}
.adv-mock-list-icon.ri{background:rgba(255,36,66,.1)}
.adv-mock-list-icon.bi{background:rgba(94,125,249,.1)}
.adv-mock-list-icon.gi{background:rgba(16,185,129,.1)}
.adv-mock-list-text{flex:1}
.adv-mock-list-title{font-size:13px;font-weight:600;color:var(--title-color);margin-bottom:2px}
.adv-mock-list-desc{font-size:11px;color:var(--muted)}
.adv-mock-list-val{font-size:16px;font-weight:700;color:var(--xhs-red)}
.adv-mock-gauge{margin-bottom:12px}
.adv-mock-gauge-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.adv-mock-gauge-label{font-size:13px;font-weight:500;color:var(--title-color)}
.adv-mock-gauge-val{font-size:14px;font-weight:700;color:var(--xhs-red)}
.adv-mock-gauge-track{height:8px;background:#e8eaf0;border-radius:4px;overflow:hidden}
.adv-mock-gauge-fill{height:100%;border-radius:4px;background:var(--xhs-grad)}

/* ===== SERVICE PROCESS (AI全景图 style - click to expand) ===== */
.process-sec{background:linear-gradient(180deg,var(--bg-alt) 0%,var(--bg-white) 100%);padding:88px 0;position:relative;overflow:hidden}
.process-sec::before{content:'';position:absolute;top:0;left:0;width:400px;height:400px;background:radial-gradient(circle,rgba(255,36,66,.04) 0%,transparent 70%);pointer-events:none}
.process-header{margin-bottom:48px}
.process-tabs{display:flex;gap:10px;position:relative;z-index:1}
.process-tab{flex:1;padding:24px 12px 20px;background:#fff;border-radius:var(--radius-xl) var(--radius-xl) 0 0;border:1px solid #EEF0F6;border-bottom:none;cursor:pointer;transition:all .35s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;align-items:center;text-align:center;position:relative}
.process-tab:hover{background:#FFF5F6}
.process-tab.active{background:var(--xhs-grad);border-color:transparent;box-shadow:0 -4px 20px rgba(255,36,66,.15)}
.process-tab-num{font-size:30px;font-weight:800;color:rgba(255,36,66,.1);line-height:1;margin-bottom:8px;transition:color .35s}
.process-tab.active .process-tab-num{color:rgba(255,255,255,.3)}
.process-tab-icon{width:42px;height:42px;border-radius:12px;background:var(--xhs-light);display:flex;align-items:center;justify-content:center;margin-bottom:10px;transition:all .35s}
.process-tab.active .process-tab-icon{background:rgba(255,255,255,.2)}
.process-tab-icon svg{width:22px;height:22px;stroke:var(--xhs-red);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round;transition:stroke .35s}
.process-tab.active .process-tab-icon svg{stroke:#fff}
.process-tab-title{font-size:14px;font-weight:600;color:var(--title-color);transition:color .35s}
.process-tab.active .process-tab-title{color:#fff}
.process-tab-hint{font-size:10px;color:var(--muted);margin-top:4px;transition:color .35s}
.process-tab.active .process-tab-hint{color:rgba(255,255,255,.6)}
.process-detail{background:#fff;border-radius:0 0 var(--radius-xl) var(--radius-xl);border:1px solid #EEF0F6;box-shadow:0 12px 32px rgba(35,56,99,.06);overflow:hidden;position:relative;z-index:1}
.process-detail-panel{display:none;padding:36px 40px}
.process-detail-panel.active{display:flex;gap:32px;align-items:flex-start;animation:fadePanel .4s ease}
@keyframes fadePanel{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.process-detail-icon{width:64px;height:64px;border-radius:16px;background:var(--xhs-grad);display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 8px 20px rgba(255,36,66,.2)}
.process-detail-icon svg{width:32px;height:32px;stroke:#fff;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.process-detail-content{flex:1}
.process-detail-content h4{font-size:22px;font-weight:700;color:var(--title-color);margin-bottom:12px}
.process-detail-content p{font-size:15px;color:var(--subtitle-color);line-height:1.8;margin-bottom:16px}
.process-detail-tags{display:flex;gap:8px;flex-wrap:wrap}
.process-detail-tag{display:inline-flex;align-items:center;gap:4px;padding:6px 14px;background:rgba(255,36,66,.06);border-radius:var(--radius-full);font-size:13px;font-weight:600;color:var(--xhs-red)}
.process-detail-tag svg{width:14px;height:14px;stroke:currentColor;stroke-width:2;fill:none}

/* ===== SCENARIO SOLUTIONS (talk.html style - 3 scenarios) ===== */
.scene-sec{background:linear-gradient(180deg,var(--bg-alt) 0%,var(--bg-white) 100%);padding:88px 0;position:relative}
.scene-list{display:flex;flex-direction:column;gap:32px}
.scene-item{display:flex;gap:60px;background:#fff;border-radius:var(--radius-2xl);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid #EEF0F6;transition:all .3s}
.scene-item:hover{box-shadow:var(--shadow-xl);transform:translateY(-4px)}
.scene-visual{flex:0 0 400px;padding:48px 36px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.scene-visual.sv1{background:linear-gradient(160deg,#fff0f3 0%,#ffe0e6 100%)}
.scene-visual.sv2{background:linear-gradient(160deg,#f0f3ff 0%,#e8ecff 100%)}
.scene-visual.sv3{background:linear-gradient(160deg,#fff5f0 0%,#ffede8 100%)}

/* Chat mockup for scene 1 */
.scene-chat{width:100%;max-width:300px;display:flex;flex-direction:column;gap:12px}
.scene-chat-bubble{max-width:85%;padding:12px 16px;border-radius:16px;font-size:13px;line-height:1.5}
.scene-chat-bubble.user{align-self:flex-end;background:var(--xhs-grad);color:#fff;border-bottom-right-radius:4px}
.scene-chat-bubble.ai{align-self:flex-start;background:#fff;color:var(--body-color);border-bottom-left-radius:4px;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.scene-chat-bubble.system{align-self:center;background:rgba(255,36,66,.1);color:var(--xhs-red);font-size:12px;font-weight:600;border-radius:var(--radius-sm);padding:8px 14px;max-width:100%}
.scene-chat-time{font-size:11px;color:var(--muted);text-align:center}

/* Note/form mockup for scene 2 */
.scene-note{width:100%;max-width:280px;background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 4px 24px rgba(0,0,0,.08)}
.scene-note-img{height:140px;background:linear-gradient(135deg,#898EFF,#5E7DF9);position:relative;overflow:hidden}
.scene-note-img::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.15),transparent 50%)}
.scene-note-body{padding:16px}
.scene-note-title{font-size:14px;font-weight:600;color:var(--title-color);margin-bottom:8px}
.scene-note-desc{font-size:12px;color:var(--subtitle-color);line-height:1.5;margin-bottom:12px}
.scene-note-form{display:flex;flex-direction:column;gap:8px}
.scene-note-input{padding:8px 12px;border:1px solid #e0e4ed;border-radius:var(--radius-sm);font-size:12px;color:var(--muted);background:var(--bg-alt)}
.scene-note-btn{padding:8px;background:linear-gradient(135deg,#898EFF,#5E7DF9);color:#fff;border:none;border-radius:var(--radius-sm);font-size:13px;font-weight:600;text-align:center;cursor:pointer}

/* Metrics mockup for scene 3 */
.scene-metrics{width:100%;max-width:300px;display:flex;flex-direction:column;gap:16px}
.scene-metric-card{background:#fff;border-radius:var(--radius-lg);padding:16px;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.scene-metric-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.scene-metric-title{font-size:13px;font-weight:600;color:var(--title-color)}
.scene-metric-badge{font-size:11px;color:var(--xhs-red);background:rgba(255,36,66,.08);padding:2px 8px;border-radius:var(--radius-sm);font-weight:600}
.scene-metric-bar-track{height:6px;background:#e8eaf0;border-radius:3px;overflow:hidden;margin-bottom:6px}
.scene-metric-bar-fill{height:100%;border-radius:3px;background:var(--xhs-grad)}
.scene-metric-num{font-size:24px;font-weight:700;color:var(--xhs-red)}

.scene-content{flex:1;padding:48px 44px;display:flex;flex-direction:column;justify-content:center}
.scene-num{font-size:48px;font-weight:800;color:rgba(255,36,66,.08);line-height:1;margin-bottom:8px}
.scene-content h3{font-size:24px;font-weight:600;color:var(--title-color);margin-bottom:16px}
.scene-pain{font-size:14px;color:var(--subtitle-color);line-height:1.7;margin-bottom:20px;padding:16px;background:#fff5f6;border-radius:var(--radius-md);border-left:3px solid var(--xhs-red)}
.scene-sol{margin-bottom:20px}
.scene-sol h4{font-size:15px;font-weight:600;color:var(--title-color);margin-bottom:8px}
.scene-sol p{font-size:14px;color:var(--body-color);line-height:1.7}
.scene-val{padding:16px;background:var(--bg-alt);border-radius:var(--radius-md);border:1px solid #EEF0F6}
.scene-val p{font-size:14px;color:var(--body-color);line-height:1.7}
.scene-val strong{color:var(--xhs-red)}
.scene-cta{margin-top:24px}
.scene-cta a{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:#fff;text-decoration:none;padding:12px 28px;border-radius:var(--radius-lg);background:var(--xhs-grad);transition:all .25s;box-shadow:0 4px 12px rgba(255,36,66,.25)}
.scene-cta a:hover{transform:translateX(4px);box-shadow:0 6px 20px rgba(255,36,66,.3)}

/* Decorative elements */
.deco-orb{position:absolute;border-radius:50%;pointer-events:none;will-change:transform}
.deco-grid-dot{position:absolute;width:120px;height:120px;background-image:radial-gradient(circle,rgba(35,56,99,.07) 1px,transparent 1px);background-size:16px 16px;pointer-events:none;will-change:transform;opacity:.5}

/* Reveal animations */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s cubic-bezier(.4,0,.2,1),transform .8s cubic-bezier(.4,0,.2,1)}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-d1{transition-delay:.1s}.reveal-d2{transition-delay:.2s}.reveal-d3{transition-delay:.3s}.reveal-d4{transition-delay:.4s}

/* CTA */
.cta-section{padding:0;position:relative;overflow:hidden}
.cta-inner{max-width:none;margin:0;background:linear-gradient(90deg,#2554fe 0%,#06b6d4 100%);padding:90px 40px;text-align:center;position:relative;overflow:hidden}
.cta-inner::before{content:'';position:absolute;top:-30%;right:-5%;width:600px;height:600px;background:radial-gradient(circle,rgba(255,255,255,0.12),transparent 70%);border-radius:50%;pointer-events:none}
.cta-inner::after{content:'';position:absolute;bottom:-40%;left:-10%;width:500px;height:500px;background:radial-gradient(circle,rgba(255,255,255,0.08),transparent 70%);border-radius:50%;pointer-events:none}
.cta-title{font-size:36px;font-weight:800;color:#fff;margin-bottom:12px;position:relative;z-index:1}
.cta-desc{font-size:17px;color:rgba(255,255,255,0.9);line-height:1.6;margin-bottom:36px;position:relative;z-index:1}
.cta-button{display:inline-flex;align-items:center;gap:8px;padding:16px 48px;background:#fff;color:#2554fe;font-size:16px;font-weight:700;border-radius:10px;transition:all .25s;position:relative;z-index:1;box-shadow:0 8px 24px rgba(0,0,0,0.15)}
.cta-button:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(0,0,0,0.2);background:#f8f9ff}

/* ===== FLOAT WIDGET ===== */
.float-widget{position:fixed;right:20px;top:50%;transform:translateY(-50%);z-index:9999;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.float-btn{position:relative;display:flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:12px;background:#fff;border:1px solid var(--border);box-shadow:0 4px 16px rgba(0,0,0,.08);cursor:pointer;transition:all .25s;color:var(--blue)}
.float-btn svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.float-btn:hover{background:linear-gradient(135deg,var(--blue),var(--purple));color:#fff;border-color:transparent;transform:translateY(-2px);box-shadow:0 8px 24px rgba(37,99,235,.25)}
.float-btn .float-tip{position:absolute;right:60px;top:50%;transform:translateY(-50%) translateX(-8px);white-space:nowrap;background:#1a1a2e;color:#fff;font-size:13px;padding:8px 14px;border-radius:8px;opacity:0;visibility:hidden;transition:all .25s;pointer-events:none;font-weight:500}
.float-btn:hover .float-tip{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0)}
.float-btn .float-tip::after{content:'';position:absolute;right:-5px;top:50%;transform:translateY(-50%);border-width:5px 0 5px 6px;border-style:solid;border-color:transparent transparent transparent #1a1a2e}
.float-btn.wechat-btn:hover .wechat-pop{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0)}
.wechat-pop{position:absolute;right:60px;top:50%;transform:translateY(-50%) translateX(-8px);opacity:0;visibility:hidden;transition:all .25s;background:#fff;border-radius:14px;padding:16px;box-shadow:0 8px 32px rgba(0,0,0,.12);text-align:center;width:160px}
.wechat-pop img{width:120px;height:120px;border-radius:8px;margin:0 auto 8px}
.wechat-pop .wp-title{font-size:14px;font-weight:600;color:var(--text)}
.wechat-pop .wp-sub{font-size:12px;color:var(--muted);margin-top:4px}
.float-btn.phone-btn:hover .phone-pop,.float-btn.phone-btn.active .phone-pop{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0)}
.phone-pop{position:absolute;right:60px;top:50%;transform:translateY(-50%) translateX(-8px);opacity:0;visibility:hidden;transition:all .25s;background:#fff;border-radius:14px;padding:16px 20px;box-shadow:0 8px 32px rgba(0,0,0,.12);display:flex;align-items:center;gap:12px}
.phone-pop-icon{width:40px;height:40px;border-radius:10px;background:#fef2f2;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.phone-pop-icon svg{width:20px;height:20px;stroke:#ef4444;stroke-width:2;fill:none}
.phone-pop-num{font-size:20px;font-weight:800;color:var(--text)}
.float-btn.top-btn{opacity:0;visibility:hidden;transform:translateY(20px)}
.float-btn.top-btn.show{opacity:1;visibility:visible;transform:translateY(0)}

/* ===== FOOTER ===== */
.footer{background:#0a0f1e;padding:64px 40px 32px}
.footer-inner{max-width:1280px;margin:0 auto}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:36px;margin-bottom:48px}
.footer-brand .f-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .f-logo img{width:40px;height:40px;border-radius:10px}
.footer-brand .f-logo span{font-size:20px;font-weight:700;color:#fff}
.footer-brand .f-logo span em{color:#60a5fa;font-style:normal}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.4);line-height:1.8;margin-bottom:20px;max-width:320px}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact-item{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.5)}
.footer-contact-item svg{width:16px;height:16px;stroke:rgba(255,255,255,.4);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:20px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.4);transition:color .2s}
.footer-col ul li a:hover{color:#60a5fa}
.footer-bottom{padding-top:24px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.3)}
.footer-bottom a{font-size:13px;color:rgba(255,255,255,.3);transition:color .2s}
.footer-bottom a:hover{color:#60a5fa}

/* Scroll Animations */
[data-aos]{opacity:0;transform:translateY(30px);transition:all .8s cubic-bezier(.4,0,.2,1)}
[data-aos].aos-animate{opacity:1;transform:translateY(0)}

@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* Responsive */
@media(max-width:1024px){
  .banner-sec{padding:100px 0 60px;min-height:auto}
  .banner-container{flex-direction:column;gap:32px}
  .banner-left{flex:0 0 auto;text-align:center}
  .banner-product{font-size:34px}
  .banner-right{min-height:auto}
  .xhs-dash{max-width:380px}
  .xhs-float-card{padding:8px 10px}
  .xhs-float-val{font-size:14px}
  .adv-split{grid-template-columns:1fr;gap:32px}
  .method-grid{grid-template-columns:repeat(2,1fr)}
  .adv-tab{font-size:14px;padding:16px 8px}
  .process-tabs{flex-wrap:wrap}
  .process-tab{flex:1 1 33%}
  .process-detail-panel{padding:28px 24px}
  .scene-item{flex-direction:column;gap:0}
  .scene-visual{flex:0 0 auto;padding:36px}
  .scene-content{padding:36px}
  .sec-title{font-size:32px}
  .sec-desc{font-size:16px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .banner-sec{padding:90px 0 50px;min-height:auto}
  .banner-container{flex-direction:column;gap:24px}
  .banner-left{text-align:center}
  .banner-product{font-size:28px}
  .banner-desc{font-size:15px}
  .banner-right{min-height:auto}
  .xhs-dash{max-width:340px}
  .xhs-float-card{display:none}
  .xhs-dash-metric-val{font-size:17px}
  .banner-cta .btn-xhs-outline{margin-left:0;margin-top:12px}
  .adv-split{grid-template-columns:1fr;gap:24px}
  .method-grid{grid-template-columns:1fr}
  .adv-tab{font-size:13px;padding:14px 6px;flex-wrap:wrap}
  .adv-split-right{min-height:auto;padding:24px}
  .adv-mock-stats{grid-template-columns:repeat(3,1fr);gap:8px}
  .adv-mock-stat-num{font-size:20px}
  .process-tabs{flex-wrap:wrap;gap:6px}
  .process-tab{flex:1 1 45%;padding:16px 8px}
  .process-tab-num{font-size:22px}
  .process-tab-icon{width:36px;height:36px}
  .process-tab-title{font-size:12px}
  .process-detail-panel{flex-direction:column;padding:24px 20px;gap:16px}
  .process-detail-content h4{font-size:18px}
  .process-detail-content p{font-size:13px}
  .scene-item{flex-direction:column}
  .scene-visual{flex:0 0 auto;min-height:auto}
  .scene-content{padding:24px}
  .sec-title{font-size:28px}
  .sec-desc{font-size:15px}
  .nav-items,.nav-phone{display:none}
  .float-widget{right:12px;top:50%;transform:translateY(-50%)}
  .float-btn{width:46px;height:46px}
  .float-btn .float-tip,.float-btn .wechat-pop{display:none}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .cta-inner{padding:60px 24px}
  .cta-title{font-size:26px}
}