:root{--ink: #111827;--muted: #64748b;--blue: #1b6ff6;--cyan: #18c9d4;--surface: #ffffff;--soft-surface: #f7faff;--content: 1120px;font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif}.site-app{min-width:320px;min-height:100vh;color:var(--ink);background:#fff}.content-shell{width:min(calc(100% - 32px),var(--content));margin-inline:auto}.site-header{position:sticky;top:0;z-index:40;height:60px;border-bottom:1px solid #edf1f7;background:#fffffffa}.header-inner{display:flex;height:100%;align-items:center;gap:32px}.brand-link,.footer-brand{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-size:18px;font-weight:600;text-decoration:none;white-space:nowrap}.brand-link img,.footer-brand img{width:28px;height:28px}.desktop-nav{display:flex;align-items:center;gap:28px;margin-left:0;white-space:nowrap}.desktop-nav a,.mobile-nav a,.mobile-nav button{border:0;color:var(--ink);background:transparent;font:inherit;text-decoration:none;cursor:pointer}.mobile-product-button{display:inline-flex;align-items:center;justify-content:space-between;gap:6px}.desktop-nav a:hover,.desktop-nav a:focus-visible,.desktop-nav a.is-active,.mobile-nav a.is-active{color:var(--blue)}.product-menu-icon{width:12px;height:12px;transition:transform .2s ease}.product-menu-icon.is-open{transform:rotate(180deg)}.mobile-product-links{padding:8px 0;margin:0;list-style:none}.mobile-product-links a{display:block;padding:10px 16px;font-size:14px;white-space:nowrap}.mobile-product-links a:hover,.mobile-product-links a:focus-visible{background:var(--soft-surface);color:var(--blue)}.language-label{display:inline-flex;align-items:center;gap:5px;padding:10px 16px;border:0;border-radius:4px;margin-left:auto;color:#475569;background:transparent;font:inherit;font-size:14px;font-weight:600;cursor:pointer}.language-label img{width:16px;height:16px}.language-label:hover{background:#f8fafc}.language-label:focus-visible{outline:2px solid #8ebbf8;outline-offset:-2px}.mobile-nav-button{display:none;align-items:center;justify-content:center;width:36px;height:36px;padding:8px;border:0;margin-left:auto;background:transparent;cursor:pointer}.mobile-nav-button img{width:20px;height:20px}.mobile-nav{display:none;position:absolute;top:60px;right:0;left:0;border-bottom:1px solid #e7edf7;background:var(--surface);box-shadow:0 10px 20px #0f172a14}.mobile-nav-inner{display:grid;padding-block:12px 18px}.mobile-nav a,.mobile-product-button{width:100%;padding:13px 8px;text-align:left}.mobile-product-links{padding:0 0 6px 8px}.mobile-product-links a{padding:11px 16px;color:#5f6877}.mobile-product-links+a{padding-top:17px;border-top:1px solid #edf1f6;margin-top:4px}.mobile-nav-button:focus-visible{outline:2px solid #8ebbf8;outline-offset:-2px}.home-page{overflow:hidden;background:#fff}.home-page section{box-sizing:border-box}.home-page h1,.home-page h2,.home-page h3,.home-page p{margin-top:0}.home-page h2{margin-bottom:18px;color:#151b2b;font-size:clamp(30px,3.2vw,42px);font-weight:600;line-height:1.3;letter-spacing:-.035em}.home-page h2 strong{background:linear-gradient(110deg,#1b6ff6,#17bfd2);background-clip:text;color:transparent;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.home-page .eyebrow{margin-bottom:14px;color:var(--blue);font-size:15px;font-weight:600;letter-spacing:.04em}.primary-button,.secondary-button{display:inline-flex;min-width:116px;height:44px;align-items:center;justify-content:center;box-sizing:border-box;padding:0 22px;border:1px solid transparent;border-radius:7px;font-size:15px;font-weight:500;line-height:1;text-decoration:none;transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease}.primary-button{color:#fff;background:linear-gradient(110deg,#1b6ff6,#3e8bff);box-shadow:0 8px 20px #1b6ff62e}.secondary-button{border-color:#cbd7e8;color:#25324a;background:#ffffffd1}.primary-button:hover,.primary-button:focus-visible,.secondary-button:hover,.secondary-button:focus-visible{transform:translateY(-1px)}.primary-button:hover,.primary-button:focus-visible{box-shadow:0 10px 24px #1b6ff647}.secondary-button:hover,.secondary-button:focus-visible{border-color:#7aaafa;color:var(--blue)}.home-hero{display:flex;min-height:calc(100vh - 60px);align-items:center;background-color:#edf6ff;background-image:url(/assets/qiyansoft/home-bg.png);background-image:image-set(url(/assets/qiyansoft/home-bg.webp) type("image/webp"),url(/assets/qiyansoft/home-bg.png) type("image/png"));background-position:center center;background-size:cover;background-repeat:no-repeat}.hero-copy{padding-top:28px;padding-bottom:48px}.announcement-link{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid rgba(27,111,246,.22);border-radius:999px;color:#49637f;background:#ffffffb3;box-shadow:0 5px 18px #3a6fad12;font-size:13px;line-height:1;text-decoration:none;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.announcement-link:hover,.announcement-link:focus-visible{border-color:#1b6ff680;color:var(--blue)}.announcement-link img{width:14px;height:14px;flex-shrink:0}.hero-copy h1{display:grid;gap:2px;max-width:760px;margin:30px 0 20px;color:#111827;font-size:clamp(38px,3.4vw,44px);font-weight:600;line-height:1.24;letter-spacing:-.045em}html[lang=en] .hero-copy h1{max-width:960px}.hero-copy h1 span{display:block}.hero-copy h1 strong{margin:0 .1em;background:linear-gradient(105deg,#1769f4,#17bdd2);background-clip:text;font-weight:650;color:transparent;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-copy>p{margin-bottom:0;color:#53657c;font-size:18px;line-height:1.8}.hero-actions{display:flex;gap:14px;margin-top:32px}.agent-section{padding:112px 24px 0;text-align:center;scroll-margin-top:60px}.agent-section>p:not(.eyebrow),.ai-section>p,.education-heading>p,.lifecycle-section>p{color:var(--muted);font-size:16px;line-height:1.8}.agent-section>.primary-button{margin-top:14px}.badge{display:inline-flex;height:24px;align-items:center;box-sizing:border-box;padding:0 9px;border-radius:999px;color:#fff;background:linear-gradient(110deg,#347ff5,#6c9fff);box-shadow:0 4px 10px #1b6ff62e;font-size:11px;font-weight:700;letter-spacing:.04em;line-height:1;vertical-align:.34em}.badge.hot{background:linear-gradient(110deg,#ff7f58,#ffb04b);box-shadow:0 4px 10px #ff7f582e}.agent-product-picture{display:block;width:min(100%,1200px);margin:68px auto 0}.agent-product-picture>img{display:block;width:100%;height:auto}.ai-section{padding:122px 24px 70px;text-align:center}.ai-section>p,.education-heading>p{max-width:760px;margin-right:auto;margin-bottom:0;margin-left:auto}.cloud-product-section{display:grid;width:min(calc(100% - 48px),var(--content));grid-template-columns:minmax(260px,.78fr) minmax(0,1.35fr);align-items:center;gap:56px;padding:24px 0 116px;margin-inline:auto}.cloud-product-copy h2,.education-product-copy h3{margin-bottom:18px;color:#151b2b;font-size:clamp(28px,2.5vw,36px);font-weight:600;line-height:1.3;letter-spacing:-.03em}.cloud-product-copy>p:not(.eyebrow),.education-product-copy>p:not(.eyebrow){margin-bottom:28px;color:var(--muted);font-size:16px;line-height:1.8}.cloud-product-picture,.cloud-product-picture>img{display:block;width:100%;height:auto}.education-section{padding:112px 24px 122px;background:#f7faff}.education-heading{text-align:center}.education-product{display:grid;width:min(100%,var(--content));grid-template-columns:minmax(0,1.4fr) minmax(260px,.7fr);align-items:center;gap:58px;margin:72px auto 0}.education-product-picture{display:block;width:100%;overflow:hidden;border-radius:12px;box-shadow:0 24px 60px #3368ac1f}.education-product-picture>img{display:block;width:100%;height:auto}.lifecycle-section{padding:112px 24px 126px;text-align:center;background:#fff}.ability-grid{display:grid;width:min(100%,var(--content));grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin:62px auto 0}.ability-card{padding:32px 30px 34px;border:1px solid #e7eef8;border-radius:14px;background:#fff;box-shadow:0 14px 40px #264e8512;text-align:left}.ability-card img{display:block;width:44px;height:44px}.ability-card h3{margin:24px 0 16px;color:#172033;font-size:20px;font-weight:600;line-height:1.4}.ability-card p{margin-bottom:0;color:#66758a;font-size:14px;line-height:1.9;text-align:justify}.page-hero{display:grid;min-height:390px;place-items:center;padding:0;background-color:#edf6ff;background-image:url(/assets/qiyansoft/home-bg.png);background-image:image-set(url(/assets/qiyansoft/home-bg.webp) type("image/webp"),url(/assets/qiyansoft/home-bg.png) type("image/png"));background-position:center center;background-size:cover;background-repeat:no-repeat;text-align:center}.page-hero h1{margin:0;font-size:clamp(32px,3.2vw,40px)}.page-hero p{margin:9px 0 0;color:#53657c;font-size:14px}.about-page{overflow:hidden;background:#fff}.about-page h2,.about-page p{margin-top:0}.about-page h2{margin-bottom:24px;color:#151b2b;font-size:32px;font-weight:600;line-height:1.3;letter-spacing:-.035em}.about-story-section{padding:92px 0 112px}.story-intro-row{display:grid;grid-template-columns:max-content minmax(0,1fr);align-items:start;gap:32px;margin-bottom:76px}.story-intro-row h2{margin-bottom:0;white-space:nowrap}.story-introduction{max-width:920px;margin-bottom:0;color:#5f6e82;font-size:16px;line-height:2}.story-list{display:grid;gap:72px}.story-row{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);align-items:center;gap:68px}.story-row-reverse{grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr)}.story-row-reverse .story-copy{grid-column:2;grid-row:1}.story-row-reverse>.story-picture{grid-column:1;grid-row:1}.story-copy p{margin-bottom:0;color:#53657c;font-size:17px;line-height:2}.story-picture,.story-picture>img{display:block;width:100%;height:auto}.story-picture{overflow:hidden;border-radius:5px}.about-news-section{padding:92px 0 112px;background:#fff}.news-list{display:grid;gap:14px}.news-link{display:grid;min-width:0;grid-template-columns:104px minmax(0,1fr) 18px;align-items:center;gap:24px;padding:19px 22px;border:1px solid #e7eef8;border-radius:4px;color:#25324a;background:#fff;box-shadow:0 5px 16px #264e8509;text-decoration:none;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}.news-link:hover,.news-link:focus-visible{border-color:#9cc0fa;box-shadow:0 14px 34px #264e851a;transform:translateY(-1px)}.news-link time{color:#7a889b;font-size:14px;font-variant-numeric:tabular-nums}.news-title{min-width:0;overflow:hidden;font-size:15px;line-height:1.6;text-overflow:ellipsis;white-space:nowrap}.news-link>img{width:18px;height:18px}.join-page{overflow:hidden;background:#fff}.join-page h2,.join-page h3,.join-page h4,.join-page p{margin-top:0}.jobs-section{padding:106px 0 120px}.jobs-heading{display:flex;align-items:center;justify-content:space-between;gap:28px;margin-bottom:42px}.jobs-heading h2{margin-bottom:0;color:#151b2b;font-size:32px;font-weight:600;line-height:1.3;letter-spacing:-.035em}.job-filters{display:flex;align-items:center;gap:24px;padding:0;border:0;margin:0}.job-filters legend{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);clip-path:inset(50%);white-space:nowrap}.job-filter{display:inline-flex;align-items:center;gap:9px;color:#53657c;font-size:15px;line-height:1;cursor:pointer}.job-filter input{width:16px;height:16px;margin:0;accent-color:var(--blue);cursor:pointer}.job-filter:has(input:focus-visible){color:var(--blue);outline:2px solid rgba(27,111,246,.35);outline-offset:4px}.job-list{display:grid;gap:14px}.job-card{border:1px solid #e7eef8;border-radius:4px;background:#fff;box-shadow:0 4px 14px #264e8509;transition:border-color .2s ease,box-shadow .2s ease}.job-card.is-open{border-color:#e7eef8;border-left:4px solid var(--blue);border-radius:0 4px 4px 0;box-shadow:0 6px 18px #264e850d}.job-disclosure{display:grid;width:100%;grid-template-columns:minmax(230px,1fr) auto 16px;align-items:center;gap:30px;padding:18px 20px;border:0;border-radius:10px;color:#172033;background:transparent;font:inherit;text-align:left;cursor:pointer}.job-disclosure:hover{color:var(--blue)}.job-disclosure:focus-visible{color:#172033;outline:2px solid #d5b759;outline-offset:-2px}.job-title{font-size:18px;font-weight:600;line-height:1.5}.job-metadata{display:flex;align-items:center;color:#6d7c90;font-size:14px;line-height:1.5}.job-metadata span{display:inline-flex;align-items:center;white-space:nowrap}.job-metadata span+span:before{width:1px;height:13px;margin:0 15px;background:#d8e0eb;content:""}.job-disclosure-icon{width:16px;height:16px}.job-detail{padding:4px 68px 34px 22px;border-top:1px solid #eef2f7;color:#53657c}.job-description{padding-top:28px;margin-bottom:32px;font-size:15px;line-height:1.9}.job-detail-columns{display:grid;grid-template-columns:1fr;gap:24px}.job-detail h4{margin-bottom:14px;color:#25324a;font-size:16px;font-weight:600;line-height:1.5}.job-detail ul{padding-left:1.25em;margin:0}.job-detail li{padding-left:2px;font-size:14px;line-height:1.9}.join-contact-section{padding:54px 0 62px;background:#fff}.join-contact-grid{display:grid;grid-template-columns:1fr;gap:18px;padding:24px 28px;border-radius:4px;background:#f7f9fc}.join-contact-card{display:flex;align-items:flex-start;gap:16px;padding:0;border:0;border-radius:0;background:transparent}.join-contact-card>img{width:24px;height:24px;margin-top:1px}.join-contact-card>div{display:grid;min-width:0;flex:1;grid-template-columns:max-content minmax(0,1fr);align-items:start;gap:20px}.join-contact-card h2{margin-bottom:0;color:#25324a;font-size:17px;font-weight:600;line-height:1.4}.join-contact-card p,.join-contact-card a{min-width:0;margin-bottom:0;color:#68788e;font-size:14px;line-height:1.6;overflow-wrap:anywhere}.join-contact-card a{text-decoration-line:underline}.join-contact-card a:hover,.join-contact-card a:focus-visible{color:var(--blue);text-decoration:underline}.site-footer{min-height:420px;padding:96px 0 150px;border-top:1px solid #edf1f5;margin-top:auto;color:#526174;background:#fff}.footer-inner{display:grid;grid-template-columns:.85fr 1.15fr auto;align-items:start;gap:64px}.footer-brand{color:var(--ink);font-size:16px}.footer-company a{display:block;margin-top:15px;color:#7a8797;font-size:13px;text-decoration:none}.footer-company a:hover,.footer-company a:focus-visible{color:var(--blue);text-decoration:underline}.footer-contact h2,.footer-about h2{margin:0 0 16px;color:#182033;font-size:15px;font-weight:600}.footer-contact p{margin:7px 0 0;font-size:13px;line-height:1.6}.footer-qr-codes{display:flex;gap:18px}.footer-qr-codes figure{margin:0;text-align:center}.footer-qr-codes img{display:block;width:72px;height:72px;border-radius:2px}.footer-qr-codes figcaption{margin-top:6px;font-size:11px}.contact-trigger{position:fixed;right:8px;bottom:88px;z-index:30;display:inline-flex;width:48px;min-height:128px;flex-direction:column;align-items:center;justify-content:center;gap:9px;padding:12px 8px;border:0;border-radius:5px;color:#fff;background:var(--blue);box-shadow:0 8px 24px #1b6ff647;font:inherit;cursor:pointer}.contact-trigger img{width:20px;height:20px;filter:brightness(0) invert(1)}.contact-trigger span{writing-mode:vertical-rl;font-size:14px;letter-spacing:.18em;line-height:1}.contact-trigger.is-icon-only{bottom:96px;min-height:48px;height:48px;padding:12px;border-radius:8px;background:linear-gradient(160deg,#5a49ee,#1b6ff6)}.contact-trigger.is-icon-only img{width:24px;height:24px}.contact-trigger:focus-visible{outline:2px solid #94bbfb;outline-offset:2px}.contact-overlay{position:fixed;z-index:60;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;padding:24px;background:#0f172ab8}.contact-dialog{position:relative;width:min(100%,430px);padding:28px 20px 22px;border-radius:5px;background:var(--surface);box-shadow:0 24px 64px #0f172a47;text-align:left}.contact-dialog h2{margin:0;font-size:18px}.contact-dialog p{margin:14px 0;color:#536174;font-size:13px}.contact-dialog>p:last-child{margin-bottom:0;color:#8490a0;font-size:12px;text-align:center}.contact-dialog>img{display:block;width:380px;max-width:100%;margin:8px auto}.contact-close{position:absolute;top:10px;right:10px;display:inline-flex;width:28px;height:28px;align-items:center;justify-content:center;padding:6px;border:0;border-radius:0;background:transparent;cursor:pointer}.contact-close:hover{background:#edf2f7}.contact-close:focus-visible{outline:2px solid #7aaafa;outline-offset:1px}.contact-close img{width:16px;height:16px}@media(max-width:1023px){.desktop-nav{display:none}.mobile-nav-button{display:inline-flex;margin-left:0}.mobile-nav{display:block}}@media(max-width:767px){.header-inner{gap:12px}html[lang=en] .header-inner{gap:8px}.desktop-nav{display:none}.mobile-nav-button{display:inline-flex;margin-left:0}.language-label{margin-left:auto}html[lang=en] .language-label{padding-inline:12px}.home-page h2{margin-bottom:14px;font-size:28px;line-height:1.4;letter-spacing:-.025em}.home-hero{min-height:calc(100svh - 60px);align-items:flex-start;background-position:56% center}.hero-copy{padding-top:78px;padding-bottom:68px}.announcement-link{max-width:calc(100% - 8px);gap:4px;padding:6px 10px;border:0;border-radius:8px 0;color:#1b6ff6;background:#e5efff;box-shadow:none;font-size:14px;line-height:20px;-webkit-backdrop-filter:none;backdrop-filter:none}.announcement-link img{width:16px;height:16px}.hero-copy h1{gap:0;max-width:320px;margin:26px 0 18px;font-size:clamp(34px,9.7vw,40px);line-height:1.3;letter-spacing:-.04em}html[lang=en] .hero-copy h1{max-width:320px}.hero-copy>p{font-size:16px;line-height:1.75}.hero-actions{gap:10px;margin-top:28px}.primary-button,.secondary-button{min-width:108px;height:42px;padding-inline:18px;font-size:14px}.agent-section{padding:78px 20px 0}.agent-section>p:not(.eyebrow),.ai-section>p,.education-heading>p,.lifecycle-section>p{font-size:15px;line-height:1.75}.badge{height:21px;padding-inline:7px;font-size:10px;vertical-align:.26em}.agent-product-picture{width:calc(100% + 16px);max-width:none;margin-top:48px;margin-left:-8px}.ai-section{padding:84px 20px 50px}.cloud-product-section{width:auto;grid-template-columns:1fr;gap:42px;padding:18px 20px 82px}.cloud-product-copy h2,.education-product-copy h3{margin-bottom:14px;font-size:28px}.cloud-product-copy>p:not(.eyebrow),.education-product-copy>p:not(.eyebrow){margin-bottom:24px;font-size:15px;line-height:1.75}.education-section{padding:80px 20px 84px}.education-product{grid-template-columns:1fr;gap:42px;margin-top:50px}.education-product-picture{border-radius:8px}.lifecycle-section{padding:80px 20px 86px}.ability-grid{grid-template-columns:1fr;gap:18px;margin-top:46px}.ability-card{padding:28px 26px 30px}.ability-card img{width:40px;height:40px}.ability-card h3{margin-top:20px}.page-hero{min-height:380px;padding:0;background-position:center center}.page-hero h1{font-size:36px}.page-hero p{margin-top:10px;font-size:15px}.about-page h2{margin-bottom:18px;font-size:28px;line-height:1.4}.about-story-section{padding:78px 0 84px}.story-intro-row{display:block;margin-bottom:52px}.story-intro-row h2{margin-bottom:18px}.story-introduction{margin-bottom:0;font-size:15px;line-height:1.9}.story-list{gap:52px}.story-row,.story-row-reverse{grid-template-columns:1fr;gap:22px}.story-row-reverse .story-copy,.story-row-reverse>.story-picture{grid-column:1;grid-row:auto}.story-copy p{font-size:15px;line-height:1.9}.story-picture{border-radius:8px}.about-news-section{padding:78px 0 86px}.news-list{gap:12px}.news-link{grid-template-columns:84px minmax(0,1fr) 16px;gap:12px;padding:18px 16px;border-radius:8px}.news-link time{font-size:12px}.news-title{font-size:14px}.news-link>img{width:16px;height:16px}.jobs-section{padding:78px 0 84px}.jobs-heading{align-items:flex-start;flex-direction:column;gap:22px;margin-bottom:30px}.jobs-heading h2{font-size:28px;line-height:1.4}.job-filters{gap:22px}.job-list{gap:12px}.job-card{border-radius:10px}.job-card.is-open{border-left-width:4px;border-radius:0 10px 10px 0}.job-disclosure{grid-template-columns:minmax(0,1fr) 16px;gap:13px 18px;padding:20px 18px}.job-title{font-size:17px}.job-metadata{grid-column:1;grid-row:2;flex-wrap:wrap;row-gap:6px;font-size:13px}.job-metadata span+span:before{margin-inline:10px}.job-metadata .job-education{flex-basis:100%}.job-metadata .job-education:before{display:none}.job-disclosure-icon{grid-column:2;grid-row:2;align-self:end}.job-detail{padding:2px 18px 28px}.job-description{padding-top:22px;margin-bottom:26px;font-size:14px;line-height:1.85}.job-detail-columns{grid-template-columns:1fr;gap:26px}.job-detail h4{margin-bottom:10px;font-size:15px}.job-detail li{font-size:13px;line-height:1.85}.join-contact-section{padding:58px 0 64px}.join-contact-grid{grid-template-columns:1fr;gap:22px;padding:30px 28px;border-radius:8px}.join-contact-card{gap:16px;padding:0}.join-contact-card h2{font-size:16px}.site-footer{min-height:0;padding:58px 0 66px}.footer-inner{grid-template-columns:1fr;align-items:start;gap:48px}.footer-contact h2,.footer-about h2{margin-bottom:18px;font-size:17px}.footer-contact p{font-size:14px;line-height:1.7}.footer-qr-codes{gap:16px}.footer-qr-codes img{width:82px;height:82px}.contact-trigger{right:12px;bottom:96px}.contact-dialog{width:min(100%,360px);padding-inline:18px}.contact-dialog>img{width:320px}}@media(min-width:768px){.agent-section{padding-top:160px;padding-bottom:170px}.agent-product-picture{margin-top:110px}.ai-section{padding-top:190px;padding-bottom:140px}.cloud-product-section{padding-top:100px;padding-bottom:190px}.education-section{padding-top:180px;padding-bottom:210px}.education-product{margin-top:110px}.lifecycle-section{padding-top:160px;padding-bottom:210px}.ability-grid{margin-top:80px}}:root{color-scheme:light}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;-webkit-font-smoothing:antialiased}.mobile-prototype{width:min(100vw,390px);height:min(100dvh,844px);margin-inline:auto;overflow:hidden;position:relative}
