/* 壹选官网：独立静态站点，不影响桌面应用或原有业务服务。 */
:root{--ink:#122337;--muted:#607080;--green:#087f66;--green-dark:#076650;--line:#dfe5e9;--pale:#f0faf6;--white:#fff;--font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.75;background:var(--white);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}img{max-width:100%;display:block}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}h1,h2,h3,p,figure{margin:0}a,button,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #dea134;outline-offset:5px}.container{width:min(1240px,calc(100% - 96px));margin:0 auto}.skip-link{position:fixed;top:-90px;left:20px;background:var(--ink);color:white;padding:10px 18px;z-index:100}.skip-link:focus{top:10px}.header{height:88px;background:rgba(255,255,255,.96);border-bottom:1px solid #eef1f3;position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}.nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:25px}.brand{display:inline-flex;align-items:center;gap:10px;white-space:nowrap}.brand img{border-radius:5px}.brand-name{font-size:25px;font-weight:750;letter-spacing:-.05em}.brand-product{font-size:14px;margin-left:7px;padding-left:17px;border-left:1px solid #dbe1e4;letter-spacing:.04em}.nav{display:flex;align-items:center;gap:32px;font-size:14px;font-weight:550}.nav>a:not(.button){position:relative}.nav>a:not(.button):after{content:"";position:absolute;left:0;bottom:-7px;width:0;height:2px;background:var(--green);transition:width .2s}.nav>a:hover:after{width:100%}.button{display:inline-flex;align-items:center;justify-content:center;gap:20px;min-height:52px;padding:13px 27px;border:1px solid var(--green);border-radius:7px;background:var(--green);color:white;font:600 15px/1.5 var(--font);transition:background .2s,transform .2s}.button:hover{background:var(--green-dark);border-color:var(--green-dark);transform:translateY(-1px)}.button.secondary{color:var(--green);background:transparent;border-color:#9dc8bd}.button.secondary:hover{background:#e7f5ef}.button.small{min-height:42px;padding:10px 22px;font-size:14px}.menu-toggle{display:none}.hero{background:#f5f7f9;overflow:hidden}.hero-inner{min-height:570px;display:grid;grid-template-columns:47% 53%;align-items:center;position:relative}.hero-copy{position:relative;z-index:1;padding:68px 0 80px}.hero h1{font-size:clamp(38px,4vw,58px);line-height:1.32;letter-spacing:-.045em;font-weight:750;white-space:nowrap}.hero h1 span{color:var(--green)}.hero p{font-size:18px;line-height:1.9;margin-top:25px;color:#526475;letter-spacing:.01em}.actions{display:flex;gap:16px;margin-top:31px}.hero-media{width:calc(100% + 92px);margin-left:-15px;position:relative}.hero-media img{width:100%;height:auto;mask-image:linear-gradient(to right,transparent,#000 7%,#000 96%,transparent);-webkit-mask-image:linear-gradient(to right,transparent,#000 7%,#000 96%,transparent)}.hero-media figcaption{font-size:11px;color:#78848f;text-align:right;position:relative;margin-top:-12px;padding-right:25px;letter-spacing:.02em}.role-strip{border-bottom:1px solid #edf0f2;background:white}.role-grid{display:grid;grid-template-columns:repeat(3,1fr);padding-top:32px;padding-bottom:32px;gap:36px}.role-grid>div{display:flex;align-items:center;gap:24px}.role-grid>div+div{border-left:1px solid var(--line);padding-left:35px}.number{font-family:Arial,sans-serif;font-size:48px;font-weight:600;letter-spacing:-.065em;line-height:1;color:#c3ccd0}.role-grid h2{font-size:20px;font-weight:650;margin-bottom:3px}.role-grid p{font-size:13px;color:var(--muted)}.section{padding:100px 0}.split{display:grid;grid-template-columns:1fr 1.07fr;gap:90px}.section h2{font-size:38px;font-weight:650;line-height:1.55;letter-spacing:-.035em}.section-intro>p{color:var(--muted);font-size:16px;line-height:1.95;margin-top:25px}.text-link{display:inline-flex;align-items:center;gap:16px;color:var(--green);font-size:14px;font-weight:600;margin-top:35px}.text-link:hover{gap:22px}.feature-list article{display:flex;gap:25px;padding:25px 0;border-bottom:1px solid var(--line)}.feature-list article:first-child{padding-top:0}.feature-list article:last-child{border-bottom:none;padding-bottom:0}.feature-icon{width:39px;height:39px;margin-top:5px;stroke-width:1.4}.feature-list h3{font-size:23px;font-weight:650;line-height:1.5;margin-bottom:9px}.feature-list p{font-size:15px;line-height:1.9;color:var(--muted)}.scenarios{background:var(--pale);padding-top:80px;padding-bottom:80px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:60px}.section-heading>p{color:var(--muted);font-size:16px;line-height:1.9;padding-right:32px}.audience-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:42px;margin-top:57px}.audience-grid article+article{border-left:1px solid #d9e7e1;padding-left:42px}.audience-grid svg{width:38px;height:38px;stroke-width:1.5;margin-bottom:17px}.audience-grid h3{font-size:22px;font-weight:600;margin-bottom:13px}.audience-grid p{font-size:15px;color:var(--muted);line-height:1.95}.audience-grid span{display:block;font-size:12px;color:var(--green);margin-top:24px;letter-spacing:.03em}.faq{padding-top:85px;padding-bottom:85px}.faq .split{grid-template-columns:.75fr 1.25fr;gap:100px}.faq-list details{border-bottom:1px solid #d5dfe5}.faq-list details:first-child{border-top:1px solid #d5dfe5}.faq-list summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;padding:23px 0;font-size:16px;font-weight:550}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary>span{position:relative;width:17px;height:17px;flex-shrink:0}.faq-list summary>span:before,.faq-list summary>span:after{content:"";position:absolute;background:var(--ink);left:0;top:8px;width:17px;height:1.5px}.faq-list summary>span:after{transform:rotate(90deg);transition:transform .2s}.faq-list details[open] summary>span:after{transform:rotate(0)}.faq-list details[open] summary{color:var(--green)}.faq-list details p{padding:0 26px 24px 0;font-size:14px;line-height:1.95;color:var(--muted)}.contact{background:#132c3c;color:white;padding:66px 0}.contact-inner{display:grid;grid-template-columns:1.1fr .8fr;align-items:center;gap:100px}.contact h2{font-size:35px;line-height:1.5;letter-spacing:-.025em;font-weight:600}.contact h2 br{display:none}.contact p{color:#b9cbd3;font-size:15px;margin-top:13px}.contact .button{margin-top:25px;background:#009274;border-color:#009274}.contact .button:hover{background:#00a484}.contact-details{padding-left:48px;border-left:1px solid #36505f}.contact-label{color:#b5c9d1;font-size:13px;display:block;margin-bottom:8px}.phone{font-size:34px;letter-spacing:.04em;font-weight:500;line-height:1.5;display:block}.email{display:inline-flex;align-items:center;gap:45px;font-size:18px;margin-top:8px;letter-spacing:.01em}.email svg{width:17px;height:17px;color:#88a7b6}.contact-details p{font-size:11px;margin-top:18px;color:#9db5c0}.footer{padding:33px 0 25px}.footer-top{display:flex;justify-content:space-between;align-items:center;gap:24px}.footer-top>.brand{gap:8px}.footer-top .brand-name{font-size:21px}.footer-top .brand-product{font-size:12px}.footer-top>a:last-child{font-size:12px;color:var(--muted)}.footer-bottom{border-top:1px solid #edf0f2;padding-top:22px;margin-top:24px;display:flex;justify-content:space-between;gap:20px;font-size:11px;color:#74818a}.footer-bottom>div{display:flex;gap:23px;flex-wrap:wrap}.footer a:hover{color:var(--green)}dialog{border:1px solid #e0e6e9;padding:40px;border-radius:14px;width:min(540px,calc(100% - 36px));color:var(--ink);box-shadow:0 24px 100px #001b3233}dialog::backdrop{background:rgba(13,31,45,.48);backdrop-filter:blur(5px)}dialog>img{margin-bottom:24px}dialog h2{font-size:24px;line-height:1.6;font-weight:650;letter-spacing:-.025em}dialog p{font-size:14px;color:var(--muted);margin-top:12px}.dialog-close{position:absolute;top:15px;right:15px;width:38px;height:38px;border:none;border-radius:50%;background:#f0f4f5;display:grid;place-items:center;color:var(--muted)}.dialog-phone{font-size:34px;display:block;margin-top:25px;letter-spacing:.02em}.dialog-actions{display:flex;gap:12px;margin-top:25px}.dialog-actions .button{font-size:13px;padding:12px 19px;min-height:46px;gap:10px}dialog small{font-size:11px;color:#77848c;display:block;line-height:1.8;margin-top:8px}dialog .copy-status{min-height:24px;font-size:12px;color:var(--green)}.legal{max-width:800px;padding-top:65px;padding-bottom:80px}.legal h1{font-size:36px;margin-bottom:28px}.legal h2{font-size:20px;margin:30px 0 10px}.legal p{color:var(--muted);margin:15px 0}.legal a{color:var(--green);text-decoration:underline}.legal .back{display:inline-flex;margin-bottom:28px;font-size:14px}
@media(min-width:1550px){.hero-inner{min-height:625px}.hero-media{width:calc(100% + 140px)}}
@media(max-width:1150px){.container{width:calc(100% - 64px)}.nav{gap:22px}.brand-product{font-size:12px;padding-left:12px;margin-left:2px}.hero-inner{min-height:490px}.hero h1{font-size:43px}.hero p{font-size:16px}.hero-media{width:calc(100% + 28px);margin-left:0}.role-grid{gap:20px}.role-grid>div{gap:17px}.role-grid>div+div{padding-left:20px}.role-grid p{font-size:11px}.role-grid h2{font-size:18px}.split{gap:55px}.section h2{font-size:31px}.section-heading>p{font-size:14px;padding:0}.audience-grid{gap:30px}.audience-grid article+article{padding-left:30px}.contact-inner{gap:45px}.contact h2{font-size:29px}.contact h2 br{display:block}.contact-details{padding-left:35px}.phone{font-size:30px}}
@media(max-width:850px){.brand-product{font-size:11px}.nav{gap:17px;font-size:12px}.nav .button{font-size:12px;padding:9px 15px}.hero h1{font-size:35px}.hero p{font-size:14px}.hero-media{margin-left:0}.hero-copy{padding:52px 0 62px}.hero-inner{min-height:425px}.actions{gap:10px}.actions .button{font-size:13px;padding:12px 18px;gap:12px;min-height:46px}.role-grid{gap:16px}.role-grid>div{gap:12px}.number{font-size:36px}.role-grid>div+div{padding-left:16px}.role-grid p{font-size:10px}.section{padding:66px 0}.section h2{font-size:28px}.section-intro>p{font-size:14px}.split{gap:40px;grid-template-columns:.95fr 1.05fr}.feature-list article{gap:17px}.feature-list h3{font-size:20px}.feature-list p{font-size:13px}.feature-icon{width:30px;height:30px}.section-heading{gap:35px}.section-heading>p{font-size:13px}.audience-grid{gap:22px;margin-top:40px}.audience-grid article+article{padding-left:22px}.audience-grid h3{font-size:20px}.audience-grid p{font-size:13px}.audience-grid span{font-size:10px}.faq .split{gap:50px}.faq-list summary{font-size:14px}.contact h2{font-size:29px}.contact p{font-size:13px}.phone{font-size:25px}.email{font-size:15px;gap:20px}.footer-bottom{flex-direction:column;gap:8px}}
@media(max-width:680px){html{scroll-padding-top:82px}.container{width:calc(100% - 40px)}.header{height:72px}.brand img{width:32px;height:32px}.brand-name{font-size:23px}.brand-product{font-size:11px;letter-spacing:0;padding-left:10px}.nav-wrap{gap:10px}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:6px;flex-shrink:0;width:42px;height:42px;padding:11px;border:1px solid var(--line);border-radius:6px;background:white}.menu-toggle span{height:1.5px;width:100%;background:var(--ink);transition:transform .2s}.menu-toggle[aria-expanded=true] span:first-child{transform:translateY(3.75px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:last-child{transform:translateY(-3.75px) rotate(-45deg)}.nav{display:none;position:absolute;top:71px;left:0;right:0;background:white;padding:22px 20px 26px;box-shadow:0 15px 25px #12233712;border-bottom:1px solid var(--line);gap:0;flex-direction:column;align-items:stretch;font-size:15px}.nav.is-open{display:flex}.nav>a:not(.button){padding:13px 5px}.nav>a:after{display:none}.nav .button{font-size:14px;margin-top:12px}.hero-inner{grid-template-columns:1fr}.hero-copy{padding:45px 0 12px}.hero h1{font-size:clamp(31px,8vw,47px);line-height:1.45;letter-spacing:-.045em}.hero p{font-size:14px;line-height:1.9;margin-top:20px}.desktop-break{display:none}.actions{margin-top:25px}.actions .button{padding:13px 24px;font-size:14px}.hero-media{width:calc(100% + 22px);margin:0 -11px 20px}.hero-media img{mask-image:linear-gradient(to right,transparent,#000 7%,#000 96%,transparent);-webkit-mask-image:linear-gradient(to right,transparent,#000 7%,#000 96%,transparent)}.hero-media figcaption{font-size:9px;margin-top:-8px;padding-right:11px}.role-grid{padding-top:22px;padding-bottom:24px;gap:12px}.role-grid>div{display:block}.role-grid>div+div{padding-left:13px}.number{font-size:27px;display:block;margin-bottom:11px;letter-spacing:-.04em}.role-grid h2{font-size:14px;margin-bottom:6px;line-height:1.5}.role-grid p{font-size:11px;line-height:1.7}.section{padding:55px 0}.split,.faq .split{grid-template-columns:1fr;gap:32px}.section h2{font-size:28px;line-height:1.5}.section-intro>p{font-size:14px;margin-top:18px}.text-link{margin-top:23px;font-size:13px}.feature-list article{padding:24px 0;gap:19px}.feature-list article:first-child{padding-top:10px}.feature-list h3{font-size:20px;margin-bottom:7px}.feature-list p{font-size:14px;line-height:1.9}.feature-icon{width:32px;height:32px;margin-top:3px}.section-heading{display:block}.section-heading>p{font-size:14px;margin-top:20px}.audience-grid{grid-template-columns:1fr;gap:0;margin-top:25px}.audience-grid article,.audience-grid article+article{padding:26px 0 23px 56px;border-left:0;border-bottom:1px solid #d9e7e1;position:relative}.audience-grid article:last-child{border:0;padding-bottom:0}.audience-grid svg{width:33px;height:33px;position:absolute;left:0;top:29px}.audience-grid h3{font-size:19px;margin-bottom:10px}.audience-grid p{font-size:14px}.audience-grid span{font-size:11px;margin-top:14px}.faq .section-intro h2 br{display:none}.faq-list summary{font-size:15px;padding:22px 0;gap:15px}.faq-list details p{font-size:14px;padding-right:8px}.contact{padding:48px 0}.contact-inner{grid-template-columns:1fr;gap:35px}.contact h2{font-size:29px}.contact h2 br{display:none}.contact-details{border-left:0;border-top:1px solid #36505f;padding:27px 0 0}.phone{font-size:31px}.email{font-size:17px}.contact-details p{font-size:11px}.footer{padding:27px 0}.footer-top{align-items:flex-start;flex-direction:column;gap:20px}.footer-top .brand-product{font-size:11px;padding-left:10px;margin-left:3px}.footer-bottom{font-size:10px;margin-top:22px;padding-top:20px;gap:12px}.footer-bottom>div{gap:8px 17px}.footer-top>a:last-child{font-size:11px}dialog{padding:30px 23px}dialog h2{font-size:22px}dialog p{font-size:13px}dialog p br{display:none}.dialog-phone{font-size:30px}.dialog-actions{gap:8px}.dialog-actions .button{font-size:12px;padding:12px 14px}.legal h1{font-size:29px}.legal{padding-top:40px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}