:root{--blue:#1457d9;--blue2:#0c3eaa;--yellow:#ffd629;--ink:#11234b;--muted:#66738f;--paper:#f6f8fc;--white:#fff;--line:#dbe2ef;--shadow:0 22px 60px rgba(20,63,145,.15)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#f5f7fb;font-family:Inter,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input{font:inherit}.container{width:min(1200px,calc(100% - 40px));margin:auto}
.announcement{min-height:39px;display:flex;align-items:center;justify-content:center;padding:7px 20px;color:#fff;background:var(--blue2);font-size:12px;letter-spacing:.04em}.announcement b{margin-right:12px;padding:2px 10px;color:#17254a;background:var(--yellow);border-radius:3px;box-shadow:0 5px 14px rgba(0,0,0,.18)}.announcement a{margin-left:16px;color:#ffe875;border-bottom:1px solid rgba(255,232,117,.7)}
.header{position:sticky;top:0;z-index:30;height:74px;background:rgba(255,255,255,.93);border-bottom:1px solid #d8e0ec;backdrop-filter:blur(16px);box-shadow:0 8px 28px rgba(25,58,119,.07)}.nav{height:100%;display:flex;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:900;letter-spacing:-.03em}.logo-mark{position:relative;width:32px;height:32px;border-radius:8px;background:var(--blue);box-shadow:5px 5px 0 var(--yellow)}.logo-mark:after{content:"";position:absolute;inset:10px;border-radius:50%;background:#fff}.navlinks{height:100%;display:flex;align-items:center;gap:4px}.navlinks a{height:100%;display:flex;align-items:center;padding:0 14px;color:#52617d;border-bottom:3px solid transparent;font-size:13px}.navlinks a:hover,.navlinks a.active{color:var(--blue);border-color:var(--yellow);background:#f7f9fd}.actions{display:flex;gap:9px}.btn{min-height:48px;padding:0 22px;display:inline-flex;align-items:center;justify-content:center;color:#17356d;background:#fff;border:1px solid #cad5e6;border-radius:7px;box-shadow:0 8px 22px rgba(23,73,160,.1);font-size:14px;font-weight:800;cursor:pointer;transition:.2s}.btn:hover{transform:translateY(-2px);box-shadow:0 13px 28px rgba(23,73,160,.17)}.btn-dark{color:#fff;background:var(--blue);border-color:var(--blue2);box-shadow:5px 5px 0 #b9cbf0}.btn-orange{color:#182650;background:var(--yellow);border-color:#e7bb00;box-shadow:5px 5px 0 var(--blue)}.btn-sm{min-height:40px;padding:0 16px}
.hero{position:relative;padding:88px 0 68px;overflow:hidden;background:linear-gradient(115deg,#fff 0 53%,#1759d5 53% 100%);border-bottom:1px solid #d6dfec}.hero:before{content:"";position:absolute;width:560px;height:560px;right:-170px;top:-240px;border-radius:50%;border:80px solid rgba(255,214,41,.95)}.hero:after{content:"";position:absolute;width:170px;height:170px;right:37%;bottom:-100px;background:var(--yellow);transform:rotate(28deg);opacity:.16}.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:.93fr 1.07fr;gap:68px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--blue);font-size:10px;font-weight:900;letter-spacing:.17em;text-transform:uppercase}.eyebrow:before{content:"";width:28px;height:5px;background:var(--yellow)}.hero h1{margin:21px 0 26px;font-size:clamp(52px,6.2vw,84px);line-height:1.02;letter-spacing:-.065em}.hero h1 span{color:var(--blue)}.lead{max-width:610px;color:#5f6d88;font-size:18px}.hero-actions{display:flex;gap:11px;margin:33px 0 16px}.micro{color:#8290a8;font-size:11px}.visual{position:relative;padding:16px}.visual-frame{position:relative;padding:37px 10px 10px;border:1px solid rgba(255,255,255,.5);border-radius:13px;background:rgba(255,255,255,.93);box-shadow:var(--shadow)}.visual-frame:before{content:"向日葵 · 跨端连接 · AI 画质增强";position:absolute;top:10px;left:18px;color:#506185;font-size:10px;font-weight:800}.visual-frame:after{content:"●  ●  ●";position:absolute;top:8px;right:18px;color:var(--blue);font-size:9px;letter-spacing:4px}.visual-frame img{width:100%;aspect-ratio:3/2;object-fit:cover;border:1px solid #cbd7e8;border-radius:8px;filter:saturate(.82);box-shadow:0 15px 34px rgba(7,42,112,.2)}.metal-node{position:absolute;z-index:3;padding:10px 14px;color:#153b82;background:#fff;border:1px solid #cfdaea;border-radius:7px;box-shadow:var(--shadow);font-size:10px;font-weight:900}.node-a{left:-5px;top:17%;border-left:4px solid var(--yellow)}.node-b{right:-5px;bottom:9%;border-right:4px solid var(--blue)}.node-dot{display:inline-block;width:8px;height:8px;margin-right:7px;border-radius:50%;background:#30c880;box-shadow:0 0 8px #63daa4}.metrics{background:#fff;border-top:1px solid #dbe3ee;border-bottom:1px solid #dbe3ee}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr)}.metric{position:relative;padding:25px 34px;border-right:1px solid #dbe3ee}.metric:first-child{border-left:1px solid #dbe3ee}.metric:after{content:"";position:absolute;left:34px;bottom:0;width:45px;height:4px;background:var(--yellow)}.metric strong{display:block;font-size:24px;letter-spacing:-.03em}.metric span{color:#75839d;font-size:11px}
.section{position:relative;padding:100px 0;border-bottom:1px solid #dce3ed}.section.white{background:#fff}.section.dark{color:#fff;background:var(--blue2);overflow:hidden}.section.dark:before{content:"";position:absolute;width:560px;height:560px;right:-190px;top:-250px;border-radius:50%;border:80px solid rgba(255,214,41,.12)}.section.dark:after{content:"";position:absolute;left:-90px;bottom:-120px;width:280px;height:280px;background:rgba(255,214,41,.08);transform:rotate(25deg)}.section.dark>.container{position:relative;z-index:2}.section-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:47px}.section-head h2{max-width:760px;margin:12px 0 0;font-size:clamp(34px,4vw,52px);line-height:1.12;letter-spacing:-.05em}.section-head p{max-width:410px;margin:0 0 4px;color:#6d7991}.dark .section-head p{color:#c1d2f2}.dark .eyebrow{color:#fff}
.grid-6{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.feature{position:relative;min-height:275px;padding:32px;background:#fff;border:1px solid #d7e0ec;border-radius:9px;box-shadow:var(--shadow);overflow:hidden}.feature:nth-child(odd):before{content:"";position:absolute;left:0;top:0;width:55%;height:5px;background:var(--blue)}.feature:nth-child(even):before{content:"";position:absolute;right:0;top:0;width:55%;height:5px;background:var(--yellow)}.feature:after{content:"";position:absolute;width:90px;height:90px;right:-45px;top:-45px;border-radius:50%;background:#edf2fb}.ficon{width:50px;height:48px;margin-bottom:47px;display:grid;place-items:center;color:var(--blue);background:#f1f5fc;border:1px solid #cbd7e8;border-radius:8px;box-shadow:4px 4px 0 var(--yellow);font-size:12px;font-weight:900}.feature h3{margin:0 0 8px;font-size:20px}.feature p{color:#68758d;font-size:13px}.more{color:var(--blue);font-size:12px;font-weight:800}.more:hover{color:#092f8a}
.scenes{display:grid;gap:22px}.scene{display:grid;grid-template-columns:1.08fr .92fr;min-height:390px;background:#1246af;border:1px solid #3e70d1;border-radius:10px;box-shadow:0 24px 60px rgba(0,24,78,.3);overflow:hidden}.scene:nth-child(even) .scene-media{order:2}.scene-media{position:relative;overflow:hidden}.scene-media:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 68%,#1246af)}.scene:nth-child(even) .scene-media:after{background:linear-gradient(-90deg,transparent 68%,#1246af)}.scene-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.68) contrast(1.05)}.scene-copy{position:relative;padding:52px;display:flex;flex-direction:column;justify-content:center}.scene-copy:after{content:"";position:absolute;right:20px;top:20px;width:16px;height:16px;background:var(--yellow);transform:rotate(45deg)}.scene-no{color:#ffe96b;font-size:10px;font-weight:900;letter-spacing:.2em}.scene h3{margin:21px 0 14px;font-size:36px;letter-spacing:-.04em}.scene p{color:#d2def5}.tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:13px}.tags span{padding:4px 10px;color:#fff;background:rgba(4,38,111,.35);border:1px solid rgba(255,255,255,.22);border-radius:15px;font-size:10px}
.compare-wrap{overflow:auto;background:#fff;border:1px solid #d4deec;border-radius:9px;box-shadow:var(--shadow)}.compare{width:100%;min-width:870px;border-collapse:collapse}.compare th,.compare td{padding:17px 14px;border-right:1px solid #dee5ef;border-bottom:1px solid #dee5ef;text-align:center;font-size:13px}.compare th:first-child,.compare td:first-child{padding-left:27px;text-align:left}.compare thead th{background:#edf3fc;font-size:12px}.compare .ours{color:#124dbd;background:#e7efff;font-weight:800}.yes{color:#139262;font-weight:800}.no{color:#929aaa}.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.review{position:relative;padding:32px;background:#fff;border:1px solid #d6dfeb;border-radius:9px;box-shadow:var(--shadow)}.review:nth-child(odd):after{content:"";position:absolute;left:0;right:50%;bottom:0;height:5px;background:var(--blue)}.review:nth-child(even):after{content:"";position:absolute;left:50%;right:0;bottom:0;height:5px;background:var(--yellow)}.review:before{content:"VERIFIED";position:absolute;right:16px;top:14px;color:#9aa6b8;font-size:9px;font-weight:900}.stars{color:#f4bc00;letter-spacing:.15em}.quote{min-height:145px;margin:23px 0 30px;color:#384965;font-size:16px}.person{display:flex;align-items:center;gap:12px;padding-top:17px;border-top:1px solid #e0e6ef}.avatar{width:42px;height:42px;display:grid;place-items:center;color:#fff;background:var(--blue);border-radius:8px;box-shadow:4px 4px 0 var(--yellow);font-weight:900}.person small{display:block;color:#78859b}
.faq{display:grid;grid-template-columns:.65fr 1.35fr;gap:76px}.faq-list{background:#fff;border:1px solid #d5deeb;border-radius:9px;box-shadow:var(--shadow);overflow:hidden}.faq-list details{border-bottom:1px solid #e0e6ef}.faq-list details:last-child{border-bottom:0}details{padding:20px 22px}summary{display:flex;justify-content:space-between;list-style:none;font-weight:800;cursor:pointer}summary:after{content:"+";width:26px;height:26px;display:grid;place-items:center;color:#fff;background:var(--blue);border-radius:4px}details[open] summary:after{content:"−";color:#17254a;background:var(--yellow)}details p{margin:15px 35px 2px 0;color:#68758d;font-size:13px}.cta{position:relative;padding:88px 0;overflow:hidden;color:#fff;background:var(--blue);border-top:1px solid #2f69dc;border-bottom:1px solid #0b3b9f}.cta:before{content:"";position:absolute;width:480px;height:480px;right:7%;top:-280px;border-radius:50%;border:70px solid var(--yellow)}.cta:after{content:"READY 03:00";position:absolute;right:3%;bottom:-35px;color:rgba(255,255,255,.06);font-size:84px;font-weight:900}.cta-inner{position:relative;z-index:2}.cta .eyebrow{color:#fff}.cta h2{margin:14px 0 13px;font-size:clamp(40px,5vw,62px);line-height:1.06;letter-spacing:-.06em}.cta p{color:#d2dff7}.articles{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.article{position:relative;padding:25px;background:#fff;border:1px solid #d6dfeb;border-radius:9px;box-shadow:var(--shadow);overflow:hidden}.article:before{content:"";position:absolute;left:0;right:50%;top:0;height:5px;background:var(--blue)}.article:nth-child(even):before{left:50%;right:0;background:var(--yellow)}.article-cover img{width:calc(100% + 50px);height:145px;margin:-25px -25px 20px;object-fit:cover;border-bottom:1px solid #dce3ed;filter:saturate(.72)}.date{color:#7b879c;font-size:10px;font-weight:800;letter-spacing:.12em}.article h3{margin:18px 0 10px;font-size:20px;line-height:1.4}.article p{color:#68758d;font-size:13px}
.footer{position:relative;padding:64px 0 24px;color:#fff;background:#092c7c;border-top:1px solid #3260b1}.footer:before{content:"";position:absolute;left:0;right:0;top:0;height:5px;background:var(--yellow)}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:45px}.footer p,.footer a{color:#a9bde7;font-size:12px}.footer h4{margin:0 0 14px;color:#fff}.footer-col a{display:block;margin:8px 0}.copyright{display:flex;justify-content:space-between;margin-top:46px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#7798d5;font-size:10px}
.page-hero{position:relative;padding:85px 0 72px;overflow:hidden;background:linear-gradient(115deg,#fff 0 64%,#1759d5 64%);border-bottom:1px solid #d5deeb}.page-hero:before{content:"";position:absolute;width:400px;height:400px;right:-120px;top:-180px;border-radius:50%;border:60px solid var(--yellow)}.page-hero:after{content:"YELLOW / BLUE / CONNECT";position:absolute;right:-20px;bottom:-28px;color:rgba(16,59,145,.055);font-size:68px;font-weight:900}.page-hero .container{position:relative;z-index:2}.page-hero h1{margin:18px 0;font-size:clamp(45px,6vw,70px);line-height:1.05;letter-spacing:-.06em}.page-hero p{max-width:690px;color:#61708b;font-size:17px}
.downloads{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.download-card{position:relative;min-height:355px;padding:29px;display:flex;flex-direction:column;background:#fff;border:1px solid #d5deeb;border-radius:9px;box-shadow:var(--shadow);overflow:hidden}.download-card:after{content:"";position:absolute;right:-40px;bottom:-40px;width:90px;height:90px;border-radius:50%;background:#eef3fc}.download-card.featured{border:2px solid var(--blue);box-shadow:8px 8px 0 rgba(255,214,41,.72)}.download-card.featured:before{content:"";position:absolute;left:0;right:0;top:0;height:5px;background:var(--yellow)}.platform{display:flex;align-items:center;justify-content:space-between}.platform h3{font-size:24px}.badge{padding:3px 8px;color:#174fb6;background:#eaf1ff;border:1px solid #c2d3f2;border-radius:3px;font-size:9px;font-weight:900}.download-card ul{flex:1;padding-left:18px;color:#66748c;font-size:13px}.version{margin-top:12px;color:#7e8a9e;font-size:10px}.download-banner{display:grid;grid-template-columns:1.1fr .9fr;background:#1246af;border:1px solid #3e70d1;border-radius:10px;box-shadow:0 24px 60px rgba(0,24,78,.3);overflow:hidden}.download-banner img{width:100%;height:100%;object-fit:cover;filter:saturate(.68)}.download-banner>div{padding:52px}.download-banner h2{font-size:37px;line-height:1.15}.download-banner p{color:#d0ddf4}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.step{position:relative;padding:25px;background:#fff;border:1px solid #d5deeb;border-radius:9px;box-shadow:var(--shadow)}.step:after{content:"";position:absolute;left:25px;right:25px;bottom:0;height:5px;background:var(--yellow)}.step b{color:var(--blue);font-size:33px;font-weight:900}.step h3{margin:14px 0 6px}
.searchbox{display:flex;max-width:660px;margin-top:29px;padding:5px;background:#fff;border:1px solid #cfd9e8;border-radius:9px;box-shadow:var(--shadow)}.searchbox input{flex:1;padding:9px 13px;color:#263b65;background:transparent;border:0;outline:none}.help-layout{display:grid;grid-template-columns:235px 1fr;gap:60px}.help-side{position:sticky;top:104px;align-self:start;padding:19px;background:#fff;border:1px solid #d5deeb;border-radius:9px;box-shadow:var(--shadow)}.help-side b{display:block;padding-bottom:11px;border-bottom:5px solid var(--yellow)}.help-side a{display:block;padding:8px 3px;color:#62708a;border-bottom:1px solid #e0e6ef;font-size:12px}.help-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.help-card{position:relative;padding:24px;background:#fff;border:1px solid #d5deeb;border-radius:9px;box-shadow:var(--shadow)}.help-card:after{content:"";position:absolute;left:24px;width:35px;bottom:0;height:4px;background:var(--blue)}.help-card:nth-child(even):after{background:var(--yellow)}.help-card h3{margin:0 0 9px;font-size:18px}.help-card p{color:#68758d;font-size:13px}.help-group{margin-bottom:68px;scroll-margin-top:112px}.help-group h2{margin:11px 0 28px;font-size:33px;letter-spacing:-.04em}.hidden{display:none!important}
@media(max-width:920px){.navlinks{display:none}.hero-grid,.scene,.faq,.download-banner,.help-layout{grid-template-columns:1fr}.hero,.page-hero{background:#fff}.visual{margin-top:15px}.grid-6,.downloads,.reviews,.articles{grid-template-columns:repeat(2,1fr)}.scene:nth-child(even) .scene-media{order:0}.scene-media{min-height:300px}.scene-media:after,.scene:nth-child(even) .scene-media:after{background:linear-gradient(0deg,#1246af,transparent 45%)}.help-side{position:static}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.container{width:min(100% - 28px,1200px)}.announcement{font-size:10px}.announcement a{display:none}.header{height:64px}.actions .btn:first-child{display:none}.hero{padding:58px 0}.hero h1{font-size:48px}.hero-actions{flex-direction:column}.metric-grid{grid-template-columns:repeat(2,1fr)}.metric{padding:18px 14px;border-bottom:1px solid #dbe3ee}.section{padding:70px 0}.section-head{display:block}.section-head p{margin-top:17px}.grid-6,.downloads,.reviews,.articles,.help-grid,.steps{grid-template-columns:1fr}.scene-copy{padding:32px 25px}.scene h3{font-size:29px}.faq{gap:30px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.copyright{display:block}.page-hero{padding:60px 0}.searchbox{display:block}.searchbox .btn{width:100%;margin-top:5px}}