:root{--ink:#11131a;--muted:#626a7d;--purple:#6152ee;--deep:#3f31d3;--line:#e3e5ed}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif}a{color:inherit;text-decoration:none}.site-header{width:min(1180px,calc(100% - 40px));height:76px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;position:relative;z-index:20}.brand{display:flex;align-items:center;gap:11px}.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;color:#fff;font-size:17px;font-weight:800;background:linear-gradient(145deg,#7868ff,#4c3dde);box-shadow:0 8px 18px #6152ee47}.brand b,.brand small{display:block}.brand b{font-size:15px}.brand small{margin-top:2px;color:#7c8393;font-size:10px}.site-header nav{display:flex;gap:34px;color:#535a6b;font-size:13px}.site-header nav a:hover{color:var(--purple)}.header-cta{padding:11px 17px;border:1px solid #d8dbe5;border-radius:11px;font-size:13px;font-weight:700;background:#fff}
.hero{min-height:980px;padding:96px 20px 80px;text-align:center;overflow:hidden;position:relative;background:radial-gradient(circle at 50% 28%,#6f5cff1a,transparent 29%),linear-gradient(180deg,#fff,#f8f8fd 71%,#fff)}.hero:before{content:"";position:absolute;inset:0;opacity:.35;background-image:linear-gradient(#6152ee0f 1px,transparent 1px),linear-gradient(90deg,#6152ee0f 1px,transparent 1px);background-size:52px 52px;mask-image:linear-gradient(to bottom,transparent,#000 20%,transparent 70%)}.eyebrow,.hero h1,.hero-lead,.hero-actions,.positioning,.product-stage{position:relative;z-index:2}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--purple);font-size:12px;font-weight:800;letter-spacing:2.2px}.eyebrow span{width:7px;height:7px;border-radius:50%;background:var(--purple);box-shadow:0 0 0 5px #6152ee1f}.hero h1{margin:24px auto 20px;max-width:960px;font-size:clamp(44px,5.8vw,76px);line-height:1.16;letter-spacing:-3px;font-weight:900}.hero-lead{max-width:720px;margin:0 auto;color:#626a7b;font-size:17px;line-height:1.9}.hero-actions{margin-top:34px;display:flex;justify-content:center;align-items:center;gap:24px}.primary-button{display:inline-block;padding:15px 22px;border-radius:12px;color:#fff;background:linear-gradient(135deg,#7162ff,#4f40dc);font-size:14px;font-weight:750;box-shadow:0 13px 28px #5041de40}.primary-button span{margin-left:14px}.text-button{color:#4d5465;font-size:13px;border-bottom:1px solid #9da2af;padding-bottom:3px}.positioning{margin:34px auto 0;display:flex;align-items:center;justify-content:center;gap:12px;color:#858b99;font-size:12px}.positioning i{width:3px;height:3px;border-radius:50%;background:#b5b8c2}.positioning strong{color:var(--deep)}
.product-stage{width:min(1160px,calc(100vw - 56px));height:500px;margin:72px auto 0;text-align:left;border:1px solid #685cc82e;border-radius:22px;background:#fff;box-shadow:0 38px 90px #2a264f29,0 3px 12px #2b264d14}.stage-toolbar{height:48px;padding:0 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #ececf2;color:#777e8e;font-size:11px}.window-dots{display:flex;gap:6px}.window-dots i{width:7px;height:7px;border-radius:50%;background:#d8d9e1}.stage-status{display:flex;align-items:center;gap:6px}.stage-status i{width:6px;height:6px;border-radius:50%;background:#29be75;box-shadow:0 0 0 4px #29be751f}.product-stage>img{width:100%;height:452px;display:block;object-fit:cover;object-position:top left;border-radius:0 0 21px 21px}.float-card{position:absolute;bottom:52px;min-width:260px;padding:16px 18px;border:1px solid #675bd82e;border-radius:14px;background:#fffffff2;box-shadow:0 16px 38px #2a264f2b;backdrop-filter:blur(10px)}.float-card small,.float-card strong{display:block}.float-card small{margin-bottom:5px;color:var(--purple);font-size:10px;font-weight:800}.float-card strong{font-size:13px}.float-left{left:-28px}.float-right{right:-28px;bottom:100px}
.statement{padding:120px 20px 130px;text-align:center}.statement>p{margin:0 0 14px;color:#979ca9;font-size:13px}.statement h2{margin:0;font-size:clamp(30px,4vw,54px);line-height:1.3;letter-spacing:-1.8px}.statement-divider{width:min(620px,90%);margin:46px auto;display:flex;align-items:center;gap:18px;color:#979ca9;font-size:11px}.statement-divider:before,.statement-divider:after{content:"";height:1px;flex:1;background:#e2e3e9}.accent-title{color:var(--purple)}
.dark-section,.content-section,.audience-section{padding:110px max(20px,calc((100vw - 1180px)/2)) 130px}.dark-section{background:#11131b;color:#fff}.section-heading{display:grid;grid-template-columns:1.2fr .8fr;gap:80px;align-items:end}.section-number{color:#7467ff;font:800 12px/1 monospace}.kicker{margin:12px 0 8px;color:#7467ff;font-size:11px;font-weight:800;letter-spacing:2px}.section-heading h2{margin:0;font-size:clamp(36px,4vw,56px);letter-spacing:-2px}.section-heading>p{margin:0;color:#9ca2b2;font-size:14px;line-height:1.9}.flow-grid{margin-top:64px;display:grid;grid-template-columns:repeat(4,1fr);border:1px solid #2b2e3a;border-radius:18px;overflow:hidden}.flow-item{min-height:190px;padding:28px;display:flex;flex-direction:column;border-right:1px solid #2b2e3a;border-bottom:1px solid #2b2e3a;background:linear-gradient(145deg,#ffffff07,transparent)}.flow-item:nth-child(4n){border-right:0}.flow-item:nth-child(n+5){border-bottom:0}.flow-item span{color:#6d7180;font:700 11px/1 monospace}.flow-item strong{margin-top:auto;font-size:25px}.flow-item small{margin-top:8px;color:#989ead;font-size:12px}.section-heading.light h2{color:var(--ink)}.section-heading.light>p{color:#6b7282}
.compare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:60px}.compare-card{padding:34px;border:1px solid var(--line);border-radius:18px;background:#fafafd}.compare-label{font-size:10px;font-weight:800;letter-spacing:1.4px;color:#8b91a0}.compare-card h3{margin:34px 0 28px;font-size:24px}.compare-card ul{list-style:none;margin:0;padding:0}.compare-card li{padding:14px 0;border-top:1px solid #e7e8ed;color:#6d7382;font-size:13px}.compare-card li:before{content:"×";margin-right:10px;color:#b0b4bf}.compare-card.featured{border-color:#6758ed;color:#fff;background:radial-gradient(circle at 90% 10%,#8579ff55,transparent 35%),linear-gradient(145deg,#6253ee,#4032ca);box-shadow:0 24px 60px #5040d933}.featured .compare-label{color:#d5d1ff}.featured li{border-color:#ffffff2b;color:#eeecff}.featured li:before{content:"✓";color:#fff}.featured-note{margin:26px -12px -12px;padding:18px;border-radius:12px;background:#ffffff17;font-size:12px;line-height:1.7}
.benefits{background:#f6f7fb}.benefit-grid{margin-top:60px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.benefit-grid article{min-height:250px;padding:25px;border:1px solid #e1e3eb;border-radius:17px;background:#fff;position:relative}.benefit-grid article>b{position:absolute;right:20px;top:18px;color:#c7cad3;font:700 11px/1 monospace}.benefit-grid article>i{display:grid;place-items:center;width:44px;height:44px;border-radius:13px;background:#efedff;color:var(--purple);font:800 11px/1 monospace;font-style:normal}.benefit-grid h3{margin:48px 0 10px;font-size:18px}.benefit-grid p{margin:0;color:#73798a;font-size:13px;line-height:1.8}
.audience-section{display:grid;grid-template-columns:.9fr 1.1fr;gap:110px}.audience-section h2{margin:12px 0 22px;font-size:clamp(36px,4vw,54px);line-height:1.25;letter-spacing:-2px}.audience-section>div>p:last-child{max-width:480px;color:#747b8b;font-size:14px;line-height:1.9}.audience-list{border-top:1px solid var(--line)}.audience-list>div{display:flex;gap:28px;padding:25px 8px;border-bottom:1px solid var(--line)}.audience-list b{color:#a8adba;font:700 11px/1.6 monospace}.audience-list span,.audience-list strong,.audience-list small{display:block}.audience-list strong{font-size:16px}.audience-list small{margin-top:7px;color:#858b99;font-size:12px}
.final-cta{margin:0 24px;padding:120px 20px;text-align:center;color:#fff;border-radius:24px;position:relative;overflow:hidden;background:radial-gradient(circle at 50% 0,#7869ff,#5041dc 43%,#392cc0)}.final-cta:before{content:"";position:absolute;inset:0;background-image:linear-gradient(#ffffff0c 1px,transparent 1px),linear-gradient(90deg,#ffffff0c 1px,transparent 1px);background-size:42px 42px}.final-cta>*{position:relative}.final-cta .kicker{color:#d8d4ff}.final-cta h2{margin:18px 0 12px;font-size:clamp(40px,5vw,66px);letter-spacing:-2.4px}.final-cta>p:not(.kicker){margin:0;color:#dcd9ff;font-size:15px}.cta-button{margin:34px 0 22px;color:var(--deep);background:#fff}.final-cta>small{display:block;color:#c4bfff;font-size:11px}footer{width:min(1180px,calc(100% - 40px));min-height:140px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;color:#8b91a0;font-size:11px}footer p{font-size:12px}
@media(max-width:820px){.site-header nav{display:none}.hero{min-height:850px;padding-top:70px}.hero h1{letter-spacing:-2px}.positioning{flex-wrap:wrap}.product-stage{height:390px;margin-top:52px}.product-stage>img{height:342px}.float-card{display:none}.section-heading{grid-template-columns:1fr;gap:24px}.flow-grid{grid-template-columns:repeat(2,1fr)}.flow-item:nth-child(2n){border-right:0}.compare-grid{grid-template-columns:1fr}.benefit-grid{grid-template-columns:repeat(2,1fr)}.audience-section{grid-template-columns:1fr;gap:48px}.final-cta{margin:0 12px}footer{flex-direction:column;justify-content:center;gap:18px;padding:34px;text-align:center}}
@media(max-width:520px){.site-header{width:calc(100% - 28px)}.header-cta{padding:10px 12px;font-size:11px}.hero{padding:70px 14px}.hero h1{font-size:39px;letter-spacing:-1.8px}.hero-lead{font-size:14px}.hero-actions{flex-direction:column;gap:16px}.product-stage{width:calc(100vw - 28px);height:310px}.product-stage>img{height:262px}.statement{padding:90px 18px}.flow-item{min-height:150px;padding:20px}.benefit-grid{grid-template-columns:1fr}.dark-section,.content-section,.audience-section{padding-top:90px;padding-bottom:90px}.final-cta{padding:85px 18px}.final-cta h2{font-size:40px}}

.page-rail{position:fixed;z-index:30;left:max(16px,calc((100vw - 1520px)/2));top:50%;transform:translateY(-50%);width:124px;padding:13px 10px;border:1px solid #e3e4ec;border-radius:15px;background:#ffffffeb;box-shadow:0 14px 40px #24204414;backdrop-filter:blur(14px)}
.page-rail-title{display:block;padding:3px 9px 10px;color:#a0a5b1;font-size:9px;font-weight:800;letter-spacing:1.4px}.page-rail a{display:flex;align-items:center;gap:9px;padding:8px 9px;border-radius:9px;color:#777e8e;font-size:11px;white-space:nowrap;transition:.18s ease}.page-rail a:hover{color:var(--purple);background:#f4f2ff}.page-rail a i{width:5px;height:5px;flex:0 0 auto;border-radius:50%;background:#c7cad4;transition:.18s ease}.page-rail a.active{color:var(--purple);font-weight:700;background:#efedff}.page-rail a.active i{background:var(--purple);box-shadow:0 0 0 4px #6152ee18}
#top,#difference,#system,#compare,#benefits,#audience,#contact{scroll-margin-top:24px}
@media(max-width:1400px){.page-rail{left:12px;width:108px;padding-inline:7px}.page-rail a{gap:7px;padding-inline:7px}}
@media(max-width:980px){body{padding-bottom:62px}.page-rail{left:50%;top:auto;bottom:10px;transform:translateX(-50%);width:min(680px,calc(100% - 20px));padding:6px;display:flex;justify-content:space-between;border-radius:14px}.page-rail-title{display:none}.page-rail a{flex:1;justify-content:center;padding:8px 5px;font-size:10px}.page-rail a i{display:none}}
@media(max-width:560px){.page-rail a{font-size:0}.page-rail a:after{font-size:10px}.page-rail a:nth-of-type(1):after{content:"首页"}.page-rail a:nth-of-type(2):after{content:"为什么"}.page-rail a:nth-of-type(3):after{content:"闭环"}.page-rail a:nth-of-type(4):after{content:"区别"}.page-rail a:nth-of-type(5):after{content:"权益"}.page-rail a:nth-of-type(6):after{content:"人群"}.page-rail a:nth-of-type(7):after{content:"开始"}}

.final-cta{width:min(1180px,calc(100% - 40px));margin-left:auto;margin-right:auto}
@media(max-width:820px){.final-cta{width:calc(100% - 24px);margin-left:auto;margin-right:auto}}