:root{--ink:#18375b;--muted:#64758c;--green:#1467ed;--paper:#fbfdff;--line:#dce6f2;--tint:#eff5fc;--accent:#a9c9f4}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;height:auto;display:block}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.35;font-weight:650;letter-spacing:-.045em}p{color:var(--muted)}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #b28335;outline-offset:5px}.wrap{max-width:1180px;margin:auto;width:calc(100% - 80px)}header{background:rgba(251,253,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.nav{height:90px;display:flex;align-items:center;justify-content:space-between;gap:25px}.brand{display:flex;align-items:center;gap:12px;font-size:24px;font-weight:650;letter-spacing:.02em}.brand small{display:block;font-size:10px;letter-spacing:.13em;font-weight:400;color:var(--muted);line-height:1.6}.nav nav{display:flex;gap:30px;font-size:14px}.nav nav a:hover{color:#1e74e8}.button{display:inline-flex;align-items:center;justify-content:center;padding:16px 25px;background:var(--green);color:white;border:1px solid var(--green);border-radius:8px;font-size:15px;font-weight:600;line-height:1.5;transition:background .2s,transform .2s}.button:hover{background:#1259cc;transform:translateY(-2px)}.button.secondary{background:transparent;color:var(--green);border-color:#bdd0e7}.button.secondary:hover{background:#e8f1ff}.button.small{padding:11px 18px;font-size:13px}.nav-actions{display:flex;gap:12px}.menu-button{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:4px 12px;color:var(--ink)}#mobile-menu{padding:15px 24px;border-top:1px solid var(--line)}#mobile-menu a{display:block;padding:10px}.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:70px;padding:85px 0 72px;align-items:center}.eyebrow{display:block;color:#4975a6;font-size:12px;letter-spacing:.12em;font-weight:650;margin-bottom:20px}.eyebrow i{display:inline-block;background:#2e87ec;width:7px;height:7px;border-radius:50%;margin-right:8px}.hero h1{font-size:54px;line-height:1.4;letter-spacing:-.055em}.hero h1 span{color:#2677ed}.hero-lead{font-size:17px;line-height:1.9;margin-top:24px}.hero-actions{display:flex;gap:12px;margin-top:30px}.hero-qr{display:flex;gap:18px;align-items:center;margin-top:30px}.hero-qr img{border:1px solid var(--line);padding:4px;background:white;border-radius:6px}.hero-qr strong{font-size:14px}.hero-qr p{font-size:12px;margin:2px 0}.hero-qr small{font-size:11px;color:#7087a1}.quiet{font-size:11px;margin-top:18px}.hero-visual{border:1px solid #d3e4fa;border-radius:140px 140px 18px 18px;background:radial-gradient(ellipse at 50% 40%,#cfe5ff,#edf6ff 70%);padding:50px 38px 28px;position:relative}.visual-top{display:block;font-size:9px;text-align:center;letter-spacing:.15em;margin-bottom:30px;color:#6390bd}.message-card{border:1px solid #d7e7f9;border-radius:15px;background:#ffffff;box-shadow:0 12px 24px #145fc410;padding:22px 25px}.message-card.first{margin-right:28px;transform:rotate(-3deg)}.message-card.second{margin-left:28px;transform:rotate(2deg);background:#1467ed;border-color:#1467ed}.message-label{font-size:10px;color:#7292b6}.message-card p{font-size:21px;color:var(--ink);font-weight:500;line-height:1.65;margin-top:10px}.message-card.second p{color:#f4f9ff}.message-card.second .message-label{color:#bddbff}.message-dot{font-size:15px;color:#8cafd9}.bridge{display:flex;align-items:center;justify-content:center;gap:15px;margin:15px 0}.bridge img{width:54px;height:54px}.bridge span{width:65px;border-top:1px dashed #8fb9ec}.tag{display:inline-block;border:1px solid #81a9e6;border-radius:20px;padding:2px 10px;font-size:10px;color:#e2f0ff;margin:14px 5px 0 0}.visual-note{text-align:center;font-size:12px;margin-top:28px;color:#4c7aaa}.visual-note small{display:block;font-size:9px;margin-top:4px;color:#809bb8}.trust-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#f0f6ff}.trust-strip .wrap{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;padding:20px 0;font-size:12px;letter-spacing:.05em}.trust-strip span+span{border-left:1px solid #c9dcf4}.section{padding:88px 0}.section-heading{margin-bottom:38px}.section-heading .eyebrow{margin-bottom:15px}.section-heading h2{font-size:36px}.section-heading p{font-size:15px;margin-top:15px}.scenarios{display:grid;grid-template-columns:repeat(3,1fr);gap:35px}.scenarios article{border-top:1px solid #b2cceb;padding-top:25px}.scenarios span{font-size:11px;color:#7698ba}.scenarios h3{font-size:20px;margin:14px 0}.scenarios p{font-size:14px}.tinted{background:var(--tint)}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.service{background:var(--paper);border:1px solid #d5e3f5;border-radius:12px;padding:30px;transition:transform .2s}.service:hover{transform:translateY(-5px)}.service-num{display:inline-flex;width:44px;height:44px;align-items:center;justify-content:center;background:#e5f0ff;border-radius:12px;font-size:24px;margin-bottom:30px}.service h3{font-size:24px}.service p{font-size:14px;margin:15px 0 30px}.text-link{font-size:13px;font-weight:600;color:#1d67bb}.text-link b{float:right}.section-note{margin-top:26px;font-size:12px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-bottom:25px}.steps b{font-size:36px;font-weight:400;color:#9ebde2}.steps h3{font-size:18px;margin:14px 0}.steps p{font-size:13px}.screenshot-section{border-top:1px solid var(--line)}.screenshots{display:flex;justify-content:center;gap:65px}.screenshots figure{margin:0;flex:1;max-width:250px}.phone{border:6px solid #254c77;border-radius:27px;overflow:hidden;background:white;box-shadow:0 16px 28px #18375b12;aspect-ratio:390 / 844}.phone img{width:100%;height:100%;object-fit:cover;object-position:top}.screenshots figcaption{display:flex;flex-direction:column;text-align:center;margin-top:20px;gap:5px}.screenshots figcaption b{font-size:17px}.screenshots figcaption span{font-size:12px;color:var(--muted)}.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.download-grid article{background:var(--paper);border:1px solid #d5e3f5;border-radius:12px;padding:30px;text-align:center}.download-grid img{margin:0 auto 24px;background:white;border-radius:5px}.download-grid h3{font-size:22px}.download-grid p{font-size:13px;margin:15px 0 24px}.wechat-guide{display:flex;align-items:center;justify-content:space-between;gap:30px;border-top:1px solid #c6daf0;margin-top:38px;padding-top:35px}.wechat-guide .eyebrow{margin-bottom:8px}.wechat-guide h3{font-size:24px}.wechat-guide em{font-style:normal;color:#2677ed}.wechat-guide p{font-size:13px;margin-top:12px}.faq{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{cursor:pointer;list-style:none;padding:22px 30px 22px 0;font-size:16px;font-weight:550;position:relative}summary:after{content:'+';position:absolute;right:2px;color:#7397c0;font-size:22px;top:17px}summary::-webkit-details-marker{display:none}details[open] summary:after{content:'−'}details p{padding:0 35px 24px 0;font-size:14px;max-width:880px}.faq-section{padding-top:80px}.end-cta{display:flex;align-items:center;justify-content:space-between;gap:30px;background:var(--green);border-radius:14px;padding:45px 50px;margin-bottom:80px}.end-cta .eyebrow{color:#bdd9ff;margin-bottom:14px}.end-cta h2{color:#f8fbff;font-size:30px}.end-cta p{color:#d3e5ff;margin-top:14px;font-size:13px}.button.light{background:#ffffff;color:var(--green);border-color:#ffffff;white-space:nowrap}.button.light:hover{background:#e2eeff}footer{background:#f0f6fd;border-top:1px solid var(--line);padding:60px 0 25px}.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.4fr;gap:40px}.footer-grid strong{font-size:13px;display:block;margin-bottom:18px}.footer-grid a:not(.brand){display:block;font-size:12px;margin-bottom:10px;color:var(--muted)}.footer-grid p{font-size:12px;margin-top:16px}.footer-bottom{display:flex;justify-content:space-between;font-size:10px;color:#7a94af;border-top:1px solid var(--line);margin-top:45px;padding-top:22px}.article{max-width:860px;padding:65px 0 80px}.breadcrumb{font-size:12px;color:#7e9abb;display:block;margin-bottom:38px}.article h1{font-size:44px;line-height:1.45}.intro{font-size:17px;margin:25px 0 40px}.article-block{padding:32px 0;border-top:1px solid var(--line);scroll-margin-top:105px}.article-block h2{font-size:27px;margin-bottom:20px}.article-block h3{font-size:20px;margin:24px 0 10px}.article-block p{font-size:15px;margin-bottom:18px}.article-block ul,.article-block ol{color:var(--muted);padding-left:24px;font-size:15px;margin-bottom:25px}.article-block li{padding:5px 0}.article-block a:not(.button){text-decoration:underline;text-underline-offset:4px}.notice{background:var(--tint);padding:28px;border-radius:10px;margin-top:30px}.notice p{font-size:14px;margin-top:12px}.guide-qr{margin-top:24px;border:1px solid var(--line);border-radius:8px}.mobile-cta{display:none}.skip{position:fixed;top:-100px;left:20px;background:var(--green);color:white;padding:10px;z-index:50}.skip:focus{top:10px}
@media(max-width:1100px){.hero{gap:35px}.hero h1{font-size:46px}.hero-visual{padding:40px 24px 24px}.message-card p{font-size:19px}.nav nav{gap:20px}.screenshots{gap:35px}.hero-actions .button{font-size:13px;padding:14px 18px}.footer-grid{gap:25px}}@media(max-width:900px){.wrap{width:calc(100% - 48px)}.nav{height:76px}.nav nav{display:none}.menu-button{display:block}.hero{grid-template-columns:1fr;gap:45px;padding:50px 0}.hero-copy{max-width:660px}.hero h1{font-size:48px}.hero-visual{max-width:480px;width:100%;justify-self:center;padding:35px 35px 25px}.hero-lead{font-size:16px}.hero-actions .button{font-size:14px}.section{padding:60px 0}.section-heading h2{font-size:30px}.scenarios{gap:20px}.scenarios h3{font-size:18px}.service{padding:25px 20px}.service h3{font-size:22px}.steps{grid-template-columns:repeat(2,1fr);gap:30px}.download-grid article{padding:25px 15px}.download-grid h3{font-size:20px}.download-grid .button{padding:10px;font-size:12px}.footer-grid{grid-template-columns:1.5fr 1fr;gap:30px}.end-cta{padding:35px;flex-wrap:wrap}.end-cta h2{font-size:27px}}@media(max-width:600px){.wrap{width:calc(100% - 40px)}.brand{font-size:20px;gap:9px}.brand img{width:31px;height:31px}.brand small{font-size:8px}.nav{gap:12px}.nav-actions{gap:7px}.nav .button.small{font-size:11px;padding:9px 12px}.menu-button{padding:3px 10px}.hero{padding:40px 0 45px;gap:30px}.eyebrow{font-size:10px}.hero h1{font-size:37px}.hero-lead{font-size:15px;margin-top:20px}.hero-actions{gap:8px;margin-top:25px}.hero-actions .button{font-size:12px;padding:13px 15px}.hero-qr{gap:12px;margin-top:24px}.hero-qr img{width:72px;height:72px}.hero-qr strong{font-size:12px}.hero-qr small{font-size:9px}.hero-qr p{font-size:11px}.hero-visual{border-radius:110px 110px 16px 16px;padding:30px 22px 22px}.visual-top{font-size:8px}.message-card{padding:18px 20px}.message-card p{font-size:18px}.visual-note{font-size:11px}.trust-strip .wrap{grid-template-columns:repeat(2,1fr);gap:14px 0;font-size:10px;padding:19px 0}.trust-strip span:nth-child(3){border:0}.section{padding:48px 0}.section-heading{margin-bottom:28px}.section-heading h2{font-size:27px}.section-heading p{font-size:13px}.section-heading .eyebrow{margin-bottom:12px}.scenarios,.service-grid,.download-grid{grid-template-columns:1fr;gap:20px}.scenarios article{padding-top:18px}.scenarios h3{font-size:19px}.scenarios p{font-size:13px}.service{padding:25px}.service-num{margin-bottom:18px}.service p{margin-bottom:22px;font-size:13px}.section-note{font-size:11px}.steps{gap:25px 20px}.steps b{font-size:30px}.steps h3{font-size:16px}.steps p{font-size:12px}.screenshots{flex-wrap:wrap;gap:28px}.screenshots figure{flex:0 0 calc(50% - 14px);min-width:0}.screenshots figure:last-child{flex-basis:52%}.phone{border-width:4px;border-radius:18px}.screenshots figcaption b{font-size:14px}.screenshots figcaption span{font-size:10px}.download-grid article{padding:26px}.download-grid img{width:125px}.download-grid p{font-size:13px}.download-grid .button{font-size:13px;padding:12px 18px}.wechat-guide{display:block}.wechat-guide h3{font-size:21px}.wechat-guide p{font-size:12px}.wechat-guide .text-link{display:block;margin-top:20px}summary{font-size:14px;padding:19px 30px 19px 0}details p{font-size:13px;padding-right:15px}.end-cta{padding:28px;margin-bottom:48px;gap:24px}.end-cta h2{font-size:25px}.end-cta p{font-size:12px}.end-cta .button{font-size:13px;padding:14px 18px}footer{padding:40px 0 95px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px 20px}.brand-footer{grid-column:1/-1}.footer-grid strong{font-size:12px}.footer-grid .wechat{grid-column:1/-1}.footer-grid .wechat p{margin-top:8px}.footer-bottom{display:block;font-size:9px;margin-top:25px}.footer-bottom span{display:block;margin-bottom:8px}.article{padding:40px 0 50px}.article h1{font-size:33px}.intro{font-size:15px;margin:20px 0 30px}.article-block h2{font-size:23px}.article-block p,.article-block ul,.article-block ol{font-size:14px}.mobile-cta{display:block;position:fixed;bottom:0;left:0;right:0;padding:10px 20px calc(10px + env(safe-area-inset-bottom));background:#fbfdfff5;border-top:1px solid var(--line);z-index:8}.mobile-cta .button{width:100%;padding:12px;font-size:14px}.desktop-br{display:none}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.home-crop{position:relative}.home-crop img{height:calc(100% * 1.48);max-width:none;position:absolute;top:-39%;object-fit:fill}

.brand img,.bridge img{border-radius:22%}
/* 首屏使用入口 */
.hero{grid-template-columns:1.1fr 1fr;padding:68px 0;gap:85px}.hero-lead{font-size:18px;line-height:1.9}.hero-access{background:linear-gradient(145deg,#f1f7ff,#e7f1ff);border:1px solid #d3e4fa;border-radius:24px;padding:32px;text-align:center;box-shadow:0 18px 50px #1467ed08}.access-heading .eyebrow{margin-bottom:8px;font-size:11px}.access-heading h2{font-size:24px;letter-spacing:-.025em}.access-qr{width:230px;padding:13px;background:white;border:1px solid #e3ecfa;border-radius:16px;margin:22px auto 14px;box-shadow:0 8px 24px #1467ed09}.access-qr img{width:204px;height:204px}.access-caption{font-size:12px;color:#567ba5}.access-downloads{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:26px}.download-button{display:flex;align-items:center;gap:9px;text-align:left;background:white;border:1px solid #cbdff8;border-radius:10px;padding:14px 12px;transition:background .2s,border-color .2s}.download-button:hover{background:#f8fbff;border-color:#1467ed}.download-button strong{display:block;font-size:13px;line-height:1.5;white-space:nowrap}.download-button small{display:block;font-size:10px;color:#718aa6;white-space:nowrap;margin-top:3px}.device-icon{display:flex;align-items:center;justify-content:center;width:26px;height:32px;flex-shrink:0;border:1.5px solid #76aaf2;border-radius:6px;color:#1467ed;font-size:16px}.download-button>span:last-child{margin-left:auto;color:#6591c6;font-size:12px}.access-wechat{font-size:11px;line-height:1.9;margin-top:22px;color:#6c88a8}.access-wechat strong{color:#3e6795;font-weight:600}@media(max-width:1100px){.hero{gap:45px}.hero-access{padding:28px 22px}.download-button{gap:6px;padding:13px 9px}.download-button strong{font-size:12px}.download-button small{font-size:9px}}@media(max-width:900px){.hero{grid-template-columns:1fr;padding:48px 0;gap:36px}.hero-access{width:100%;max-width:520px;justify-self:center;padding:30px}.download-button{padding:15px 14px;gap:10px}.download-button strong{font-size:14px}.download-button small{font-size:11px}.hero-copy{width:100%}}@media(max-width:600px){.hero{padding:35px 0 40px;gap:28px}.hero-lead{font-size:16px;margin-top:18px}.hero-access{padding:24px 18px;border-radius:20px}.access-heading h2{font-size:21px}.access-qr{width:206px;padding:12px;margin-top:18px}.access-qr img{width:180px;height:180px}.access-downloads{gap:9px;margin-top:22px}.download-button{padding:13px 9px;gap:7px}.download-button strong{font-size:12px}.download-button small{font-size:9px}.device-icon{width:23px;height:29px}.access-caption{font-size:11px}.access-wechat{font-size:10px;margin-top:18px}}
/* 真实应用页面截图 */
.screenshots{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;align-items:start}.screenshots figure{width:100%;max-width:250px;justify-self:center;min-width:0}.screenshots figure:last-child{width:100%;max-width:250px}.screenshots .phone{width:100%}@media(max-width:900px){.screenshots{grid-template-columns:repeat(2,minmax(0,1fr));gap:35px}}@media(max-width:600px){.screenshots{gap:28px 18px}.screenshots figure,.screenshots figure:last-child{width:100%;max-width:250px}.screenshots figcaption span{font-size:10px}}
/* 微信、支付宝竖排入口与锥形扫描光束 */
.scan-entry{display:grid;grid-template-columns:56px minmax(40px,1fr) 230px;align-items:center;margin:22px auto 14px;max-width:400px}.scan-apps{display:flex;flex-direction:column;align-items:center;gap:18px;position:relative;z-index:2}.scan-app{width:54px;height:54px;display:flex;align-items:center;justify-content:center;border-radius:15px;box-shadow:0 6px 16px #216bc51a}.scan-app svg{width:40px;height:40px}.wechat-icon{background:#07c160}.alipay-icon{background:#1677ff}.scan-entry .access-qr{margin:0;position:relative;z-index:2}.scan-light{height:220px;position:relative;isolation:isolate;pointer-events:none}.scan-light-cone{position:absolute;inset:0 -3px 0 0;clip-path:polygon(0 48%,100% 8%,100% 92%,0 52%);background:linear-gradient(90deg,#45a1ff05,#45a1ff55 55%,#5cb3ff22);transform-origin:left center;animation:scan-flashlight 3s ease-in-out infinite;overflow:hidden}.scan-light-cone:after{content:'';position:absolute;inset:0;width:28%;background:linear-gradient(90deg,transparent,#b4e8ffb0,transparent);transform:translateX(-120%);animation:scan-light-travel 3s ease-in-out infinite}.scan-light-source{position:absolute;left:-2px;top:calc(50% - 3px);width:6px;height:6px;border-radius:50%;background:#a3dcff;box-shadow:0 0 8px #52a5ff,0 0 18px #75bfff;animation:scan-source-glow 3s ease-in-out infinite}@keyframes scan-flashlight{0%,100%{opacity:.35;transform:scaleY(.88)}45%,65%{opacity:1;transform:scaleY(1)}}@keyframes scan-light-travel{0%,12%{transform:translateX(-120%);opacity:0}25%{opacity:.9}72%{transform:translateX(420%);opacity:.7}85%,100%{transform:translateX(420%);opacity:0}}@keyframes scan-source-glow{0%,100%{opacity:.45}50%{opacity:1}}@media(max-width:600px){.scan-entry{grid-template-columns:44px minmax(30px,1fr) 206px;margin-top:20px}.scan-app{width:42px;height:42px;border-radius:12px}.scan-app svg{width:31px;height:31px}.scan-apps{gap:16px}.scan-light{height:196px}.scan-entry .access-qr{width:206px}}@media(prefers-reduced-motion:reduce){.scan-light-cone,.scan-light-cone:after,.scan-light-source{animation:none}.scan-light-cone{opacity:.5}.scan-light-cone:after{display:none}}
@media(max-width:360px){.scan-entry{grid-template-columns:40px minmax(16px,1fr) 180px}.scan-entry .access-qr{width:180px;padding:11px}.scan-entry .access-qr img{width:156px;height:156px}.scan-app{width:38px;height:38px}.scan-app svg{width:29px;height:29px}.scan-light{height:174px}}
.hero-copy,.hero-access{min-width:0}.access-downloads{grid-template-columns:repeat(2,minmax(0,1fr))}@media(max-width:900px){.hero{grid-template-columns:minmax(0,1fr)}}@media(max-width:360px){.download-button{padding:12px 6px;gap:5px}.download-button strong{font-size:10px}.download-button small{font-size:8px}.download-button .device-icon{width:18px;height:26px}.download-button>span:last-child{display:none}}
/* 官方原始品牌素材：保持图形比例，支付宝素材只裁去透明留白 */
.wechat-icon img{width:40px;height:auto}.alipay-icon{background:white;border:1px solid #d5e4fb;position:relative;overflow:hidden}.alipay-icon img{position:absolute;width:370%;height:auto;max-width:none;left:50%;top:50%;transform:translate(-50%,-50%)}@media(max-width:600px){.wechat-icon img{width:31px}}@media(max-width:360px){.wechat-icon img{width:29px}}
/* 当前页面导航 */
.nav nav{gap:12px}.nav-link{padding:8px 12px;border-radius:8px}.nav-link.is-active{color:#1467ed;background:#e6f0ff;font-weight:650}.nav nav .nav-link:hover{background:#edf5ff;color:#1467ed}#mobile-menu .nav-link{padding:10px 14px;margin:3px 0}#mobile-menu .nav-link.is-active{background:#e6f0ff}