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.classroom{padding:130px 0;background:#fff;color:#0b0b0b}.classroom:before{display:none}.classroom .classroom-layout{display:block;width:min(1280px,calc(100% - 80px))}.classroom .faq-list{display:block}.faq-heading{display:flex;align-items:flex-end;justify-content:space-between;padding-bottom:42px;border-bottom:3px solid #0b0b0b}.faq-heading span{font-size:13px;font-weight:800;letter-spacing:2px}.faq-heading h2{font-size:68px;line-height:1;margin:0;font-weight:900;letter-spacing:-3px}.classroom .faq-list details{background:#fff;border:0;border-bottom:1px solid #c8c8c8;border-radius:0;box-shadow:none;transition:background .32s,color .32s}.classroom .faq-list details:hover{transform:none;border-color:#0b0b0b;background:#f5f5f5}.classroom .faq-list details[open]{background:#0b0b0b;color:#fff;border-color:#0b0b0b;box-shadow:none}.classroom .faq-list summary{min-height:112px;grid-template-columns:72px 1fr 48px;gap:20px;padding:0 28px}.classroom .faq-list summary>span{font-size:15px;color:#949494;font-weight:700;letter-spacing:1px}.classroom .faq-list summary>b{font-size:26px;font-weight:700;letter-spacing:-.4px}.classroom .faq-list summary>i{width:46px;height:46px;border:1px solid #111;background:transparent}.classroom .faq-list summary>i:before,.classroom .faq-list summary>i:after{left:13px;right:13px;top:21px;background:#111}.classroom .faq-list details[open] summary>b{color:#fff}.classroom .faq-list details[open] summary>i{border-color:#fff}.classroom .faq-list details[open] summary>i:before,.classroom .faq-list details[open] summary>i:after{background:#fff}.classroom .faq-answer{max-width:900px;padding:0 80px 40px 120px;color:#c7c7c7;font-size:17px;line-height:2}
footer{background:#173544;color:#fff;padding:55px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,.75fr) 1fr;gap:48px}.brand.inverse strong{font-size:18px}.footer-grid p{font-size:11px;color:#96adb9;line-height:1.9;margin-top:19px}.footer-grid>div{display:flex;flex-direction:column;gap:9px}.footer-grid>div>b{font-size:13px;margin-bottom:7px}.footer-grid a:not(.brand){font-size:11px;color:#9cb3be}.download{display:grid!important;grid-template-columns:65px 1fr;align-content:start}.download .qr{grid-row:1/3;width:65px;height:65px;display:grid;place-items:center;background:#fff;color:#173544;font-size:46px}.download small{font-size:10px;color:#9cb3be}.copyright{color:#77929f;font-size:9px;padding-top:30px;margin-top:30px;border-top:1px solid rgba(255,255,255,.08)}
.reveal{opacity:0;transform:translateY(36px);transition:opacity .75s ease,transform .75s cubic-bezier(.2,.7,.2,1)}.reveal.visible{opacity:1;transform:translateY(0)}.delay-1{transition-delay:.09s}.delay-2{transition-delay:.18s}.delay-3{transition-delay:.27s}.hero-visual.reveal{transform:translateX(35px)}.hero-visual.reveal.visible{transform:translateX(0)}
@media(max-width:1050px){.nav-links{gap:15px}.nav-links a{font-size:12px}.nav-actions .login,.nav-actions .search{display:none}.hero h1{font-size:46px}.metrics{grid-template-columns:repeat(3,1fr)}.metrics article{height:155px}.solution-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.4fr repeat(3,1fr)}.download{display:none!important}}
@media(max-width:1050px){.feature-layout,.feature-layout.reverse{grid-template-columns:1.15fr .85fr;gap:42px}.product-shot{height:500px}.browser-ui{height:440px;padding-left:24px;padding-right:24px}.feature-copy h2{font-size:39px}.feature-copy li{font-size:13px;white-space:normal}.score-body{grid-template-columns:125px 1fr}}
@media(max-width:1050px){.classroom-layout{grid-template-columns:280px 1fr;gap:45px}.classroom-intro h2{font-size:50px}}
@media(max-width:760px){.shell{width:min(100% - 30px,540px)}.nav-wrap,.nav-wrap.scrolled{height:64px}.nav{justify-content:space-between}.menu-btn{display:grid;width:38px;height:38px;border:0;background:#f4fbff;border-radius:9px;padding:10px;margin-left:auto}.menu-btn span{height:2px;background:#52abda;transition:.25s}.menu-btn.open span:first-child{transform:translateY(6px) rotate(45deg)}.menu-btn.open span:nth-child(2){opacity:0}.menu-btn.open span:last-child{transform:translateY(-6px) rotate(-45deg)}.nav-links{position:fixed;inset:64px 0 auto;display:grid;background:rgba(255,255,255,.98);height:auto;gap:0;padding:13px 20px 25px;box-shadow:0 20px 30px rgba(30,56,70,.1);transform:translateY(-130%);transition:.3s;z-index:-1}.nav-links.open{transform:translateY(0)}.nav-links a{height:43px}.nav-links a:after{display:none}.nav-actions{display:none}.hero{padding-top:64px;min-height:870px}.hero-grid{display:block;padding-top:62px}.hero-copy{text-align:center;padding:0;width:100%;min-width:0}.eyebrow{justify-content:center}.hero h1{font-size:39px}.hero-copy>p{font-size:13px;line-height:1.8}.hero-buttons,.mini-trust{justify-content:center}.hero-buttons{gap:10px}.hero-buttons .btn{min-width:128px;padding:0 12px}.hero-visual{height:410px;margin-top:15px}.hero-visual>img{height:390px}.halo{width:340px;height:340px;top:35px}.orbit-1{width:430px;height:220px}.orbit-2{width:340px;height:310px}.ai-card{right:-20px;top:80px;transform:scale(.75)!important}.score-card{right:-10px;top:240px;transform:scale(.75)!important}.chart-card{left:-25px;top:175px;transform:scale(.7)!important}.metrics-wrap{margin-top:-10px}.metrics{grid-template-columns:repeat(2,1fr)}.metrics article{height:145px}.metrics article:nth-child(n+5){display:none}.section{padding:65px 0}.section-heading h2{font-size:28px}.people-grid{grid-template-columns:repeat(2,1fr);gap:13px}.person{height:255px}.solution-grid{grid-template-columns:1fr}.solution ul{height:auto;margin-bottom:20px}.trust-grid{grid-template-columns:repeat(2,1fr)}.trust-grid article{padding:17px}.trust-grid b{font-size:19px}.cta-inner{height:440px;display:block;padding-top:60px;text-align:center;position:relative}.cta h2{font-size:29px}.cta img{position:absolute;height:180px;right:50%;transform:translateX(50%);bottom:0;margin:0}.footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:26px}.footer-grid>div:nth-child(4){display:none}.btn{min-width:140px;height:48px}}
@media(max-width:760px){.feature-screen{min-height:auto;padding:80px 0}.feature-layout,.feature-layout.reverse{display:flex;flex-direction:column;gap:40px}.feature-layout.reverse .product-shot,.feature-layout.reverse .feature-copy{order:initial}.product-shot{width:100%;height:330px}.browser-ui{height:305px;width:100%;border-width:8px;border-radius:16px;padding:45px 15px 12px;transform:scale(.98)}.shot-backdrop{inset:20px 8px 0;border-radius:18px}.browser-bar{height:35px;padding:0 10px;gap:8px}.browser-bar i{width:18px}.ui-title{font-size:16px;padding-top:10px;margin-bottom:10px}.feature-copy{width:100%}.feature-copy h2{font-size:35px}.feature-copy li{font-size:13px;margin:13px 0}.title-swoosh{margin-bottom:18px}.ui-columns{gap:5px}.ui-columns div{padding:8px}.ui-chart{height:62px;margin-top:8px}.score-body{height:105px;grid-template-columns:90px 1fr}.score-ring:before{width:54px;height:54px;border-width:8px}.score-notes{padding:10px}.score-notes span:nth-child(n+3){display:none}.subscores{margin-top:8px}.question{padding:10px;margin-top:9px}.question>div{gap:4px}.question i{padding:6px}.exam-ui button{margin-top:7px;padding:7px 16px}.bank-list{gap:6px;margin-top:9px}.bank-list>div{padding:7px}.bank-list>div:last-child{display:none}}
@media(max-width:760px){.audience{min-height:auto}.audience-heading>span{font-size:48px}.audience .audience-heading h2{font-size:29px}.audience .people-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:13px;height:auto}.audience .person,.audience .people-grid:hover .person:not(:hover),.audience .person:hover{height:280px;min-width:0;filter:none;transform:none;flex:none}.audience .person>div{bottom:18px;padding:0 12px}.audience .person strong,.audience .person:hover strong{font-size:30px}.audience .person b,.audience .person:hover b{font-size:14px;margin-top:7px}.audience .person small,.audience .person:hover small{font-size:9px}.audience .person:hover img{transform:translateX(-50%)}}
@media(max-width:760px){.classroom{padding:75px 0}.classroom-layout{display:block}.classroom-intro{position:static;text-align:center;margin-bottom:38px}.classroom-intro h2{font-size:43px}.classroom-intro h2 br{display:none}.classroom-intro>p{margin-left:auto;margin-right:auto}.classroom-tip{display:none}.faq-list{gap:9px}.faq-list summary{min-height:64px;grid-template-columns:35px 1fr 24px;padding:0 15px;gap:7px}.faq-list summary>b{font-size:14px}.faq-answer{padding:0 43px 18px 57px;font-size:12px}.faq-list details:hover{transform:none}}
@media(max-width:760px){.classroom{padding:80px 0}.classroom .classroom-layout{width:calc(100% - 30px)}.faq-heading{display:block;padding-bottom:25px}.faq-heading span{display:block;margin-bottom:14px}.faq-heading h2{font-size:42px;letter-spacing:-2px}.classroom .faq-list summary{min-height:86px;grid-template-columns:35px 1fr 36px;gap:8px;padding:0 8px}.classroom .faq-list summary>b{font-size:18px}.classroom .faq-list summary>i{width:34px;height:34px}.classroom .faq-list summary>i:before,.classroom .faq-list summary>i:after{left:9px;right:9px;top:15px}.classroom .faq-answer{padding:0 49px 26px 51px;font-size:14px;line-height:1.8}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.float-card{animation:none}}

/* FAQ — clean blue Q&A layout */
.classroom{padding:105px 0 125px;background:#fff;color:#15252d}.classroom .classroom-layout{width:min(820px,calc(100% - 48px))}.classroom .faq-list{display:block}.faq-heading{display:block;text-align:center;border:0;padding:0 0 40px}.faq-heading span{display:none}.faq-heading h2{position:relative;display:inline-block;margin:0;padding-bottom:22px;font-size:44px;line-height:1;font-weight:800;letter-spacing:2px;color:#15252d}.faq-heading h2:after{content:"";position:absolute;left:50%;bottom:0;width:48px;height:4px;border-radius:4px;background:#24b6ff;transform:translateX(-50%)}.classroom .faq-list details{margin-bottom:14px;background:#fff;color:#17262e;border:1px solid #e2e8eb;border-radius:11px;box-shadow:0 2px 7px rgba(24,58,75,.045);overflow:hidden;transition:border-color .25s,box-shadow .25s}.classroom .faq-list details:hover{background:#fff;border-color:#cde0e9;box-shadow:0 8px 25px rgba(35,99,130,.08)}.classroom .faq-list details[open]{background:#fff;color:#17262e;border-color:#d7eaf3;box-shadow:0 7px 25px rgba(34,91,173,.08)}.classroom .faq-list summary{min-height:76px;grid-template-columns:32px 1fr 22px;gap:13px;padding:0 24px}.classroom .faq-list summary>span{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#f0faff;color:transparent;font-size:0}.classroom .faq-list summary>span:after{content:"Q";color:#24b6ff;font-size:17px;font-weight:800}.classroom .faq-list summary>b,.classroom .faq-list details[open] summary>b{font-size:17px;font-weight:600;letter-spacing:0;color:#17262e}.classroom .faq-list summary>i,.classroom .faq-list details[open] summary>i{width:11px;height:11px;border:0;border-right:2px solid #24b6ff;border-bottom:2px solid #24b6ff;border-radius:0;background:transparent;transform:rotate(45deg);transition:transform .25s}.classroom .faq-list details[open] summary>i{transform:rotate(225deg)}.classroom .faq-list summary>i:before,.classroom .faq-list summary>i:after,.classroom .faq-list details[open] summary>i:before,.classroom .faq-list details[open] summary>i:after{display:none}.classroom .faq-answer{position:relative;max-width:none;margin:0 18px 18px;padding:21px 24px 21px 52px;border-radius:9px;background:linear-gradient(100deg,#f5fcff,#f8fdff);color:#566074;font-size:14px;line-height:2}.classroom .faq-answer:before{content:"A";position:absolute;left:14px;top:20px;display:grid;place-items:center;width:27px;height:27px;border-radius:50%;background:#24b6ff;color:#fff;font-size:14px;font-weight:800}
@media(max-width:760px){.classroom{padding:75px 0 90px}.classroom .classroom-layout{width:calc(100% - 28px)}.faq-heading{padding-bottom:30px}.faq-heading h2{font-size:36px}.classroom .faq-list summary{min-height:70px;grid-template-columns:30px 1fr 18px;gap:10px;padding:0 15px}.classroom .faq-list summary>span{width:30px;height:30px}.classroom .faq-list summary>b,.classroom .faq-list details[open] summary>b{font-size:14px}.classroom .faq-answer{margin:0 10px 10px;padding:17px 15px 17px 45px;font-size:12px}.classroom .faq-answer:before{left:11px;top:16px;width:25px;height:25px}}

/* 官网文章入口 */
.journal-section{padding:115px 0 125px;background:#f5fbfe}.journal-heading{display:flex;align-items:end;justify-content:space-between;margin-bottom:44px}.journal-heading span{color:#24a9ef;font-size:11px;font-weight:800;letter-spacing:2px}.journal-heading h2{margin:10px 0 8px;color:#15252d;font-size:44px;line-height:1;font-weight:900}.journal-heading p{margin:0;color:#7d8b93;font-size:14px}.journal-heading>a{display:flex;align-items:center;gap:18px;padding:13px 18px;border:1px solid #d8e7ee;border-radius:11px;background:#fff;color:#263740;font-size:13px;font-weight:700;transition:.25s}.journal-heading>a b{color:#168de0;font-size:18px}.journal-heading>a:hover{border-color:#8dcef1;box-shadow:0 10px 28px rgba(35,119,162,.1);transform:translateY(-2px)}.journal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.journal-card{overflow:hidden;border:1px solid #e1ebef;border-radius:18px;background:#fff;box-shadow:0 12px 35px rgba(45,91,114,.07);transition:transform .3s,box-shadow .3s}.journal-card:hover{transform:translateY(-8px);box-shadow:0 22px 48px rgba(45,91,114,.13)}.journal-cover{position:relative;height:210px;padding:25px;overflow:hidden;background:linear-gradient(140deg,#e9f8ff,#caefff)}.journal-cover:before,.journal-cover:after{content:"";position:absolute;border:1px solid rgba(27,147,209,.17);border-radius:50%}.journal-cover:before{width:235px;height:235px;right:-75px;top:-80px}.journal-cover:after{width:140px;height:140px;right:-20px;top:-28px}.journal-cover>span{position:absolute;left:24px;bottom:14px;color:#20a3e8;font-size:76px;font-weight:900;line-height:1;letter-spacing:-5px}.journal-cover>i{position:absolute;right:24px;bottom:24px;color:#4b9fc9;font-size:10px;font-style:normal;font-weight:800;line-height:1.6;text-align:right;letter-spacing:1px}.journal-cover.has-image{background-position:center;background-size:cover}.journal-cover.has-image:before,.journal-cover.has-image:after{display:none}.journal-copy{padding:25px 26px 27px}.journal-copy time{color:#20a3e8;font-size:11px;font-weight:700}.journal-copy h3{min-height:56px;margin:10px 0 9px;color:#17272f;font-size:21px;line-height:1.35}.journal-copy p{display:-webkit-box;min-height:47px;margin:0;color:#77848b;font-size:13px;line-height:1.8;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2}.journal-copy>b{display:flex;align-items:center;justify-content:space-between;margin-top:22px;padding-top:17px;border-top:1px solid #edf1f3;color:#3f5059;font-size:12px}.journal-copy>b i{color:#1699df;font-size:17px;font-style:normal}.journal-empty{grid-column:1/-1;padding:70px;border:1px dashed #cbdde5;border-radius:18px;color:#87949b;text-align:center}@media(max-width:900px){.journal-grid{grid-template-columns:repeat(2,1fr)}.journal-card:last-child{display:none}}@media(max-width:600px){.journal-section{padding:75px 0 85px}.journal-heading{display:block;margin-bottom:30px}.journal-heading h2{font-size:35px}.journal-heading>a{width:max-content;margin-top:22px}.journal-grid{grid-template-columns:1fr}.journal-card:last-child{display:block}.journal-cover{height:190px}}

.download{grid-template-columns:88px 1fr!important;column-gap:12px!important}.download .qr{width:88px!important;height:88px!important;grid-row:1/4!important;border-radius:8px;object-fit:cover;background:#fff;padding:3px}.download>b{align-self:end}.download>small{line-height:1.5}

/* 合规备案信息 */
.copyright{display:flex;align-items:center;justify-content:space-between;gap:18px;padding-top:20px}.compliance-records{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:4px 18px}.compliance-records a{min-height:40px;display:inline-flex;align-items:center;gap:7px;color:#91a9b5;font-size:10px;text-decoration:none;text-wrap:pretty;transition-property:color;transition-duration:150ms;transition-timing-function:ease-out}.compliance-records a:hover{color:#d8e8ef}.public-security-record img{flex:0 0 auto;border-radius:4px;outline:1px solid rgba(255,255,255,.1);outline-offset:-1px}@media(max-width:760px){.copyright{align-items:flex-start;flex-direction:column;gap:2px}.compliance-records{align-items:flex-start;justify-content:flex-start;flex-direction:column;gap:0}}

/* 顶部开始使用 / 小程序二维码 */
.use-entry{position:relative}.use-trigger{min-width:112px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 14px 0 16px;border:0;cursor:pointer;font-family:inherit}.use-trigger i{font-size:15px;font-style:normal;line-height:1;transform:translateY(-1px);transition-property:transform;transition-duration:160ms;transition-timing-function:cubic-bezier(.2,0,0,1)}.use-entry.is-open .use-trigger i{transform:translateY(1px) rotate(180deg)}.use-trigger{transition-property:transform,box-shadow,filter;transition-duration:150ms;transition-timing-function:ease-out}.use-trigger:hover{filter:saturate(1.08);box-shadow:0 10px 24px rgba(18,177,255,.24)}.use-trigger:active{transform:scale(.96)}.use-trigger:focus-visible{outline:3px solid rgba(20,127,255,.24);outline-offset:3px}.miniapp-popover{position:absolute;top:calc(100% + 11px);right:0;width:218px;max-width:calc(100vw - 24px);padding:14px;border-radius:18px;background:rgba(255,255,255,.985);box-shadow:0 0 0 1px rgba(0,0,0,.06),0 10px 24px rgba(31,68,88,.12),0 24px 52px rgba(31,68,88,.1);opacity:0;visibility:hidden;pointer-events:none;filter:blur(3px);transform:translateY(-7px) scale(.98);transform-origin:top right;transition-property:opacity,transform,filter,visibility;transition-duration:160ms;transition-timing-function:cubic-bezier(.2,0,0,1);z-index:100}.miniapp-popover:before{content:"";position:absolute;left:0;right:0;bottom:100%;height:13px}.use-entry.is-open .miniapp-popover{opacity:1;visibility:visible;pointer-events:auto;filter:blur(0);transform:translateY(0) scale(1)}.miniapp-popover-copy{display:grid;gap:3px;text-align:center}.miniapp-popover-copy strong{color:#18252c;font-size:14px;line-height:1.5;text-wrap:balance}.miniapp-popover-copy span{color:#7a8790;font-size:10px;line-height:1.5;text-wrap:pretty}.miniapp-qr-wrap{width:162px;margin:12px auto 10px;padding:6px;border-radius:16px;background:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.06),0 2px 4px rgba(0,0,0,.04)}.miniapp-qr-wrap img{display:block;width:150px;height:150px;border-radius:10px;outline:1px solid rgba(0,0,0,.1);outline-offset:-1px}.miniapp-popover p{display:flex;align-items:center;justify-content:center;gap:7px;margin:0;color:#62737d;font-size:10px;line-height:1.5}.miniapp-popover p span{width:6px;height:6px;border-radius:50%;background:#21c77a;box-shadow:0 0 0 3px rgba(33,199,122,.12)}@media(max-width:760px){.nav{gap:10px}.nav-actions{display:flex}.use-trigger{min-width:96px;min-height:40px;padding:0 11px 0 13px;font-size:12px}.miniapp-popover{position:fixed;top:72px;right:15px;width:218px;max-width:calc(100vw - 30px);max-height:calc(100vh - 88px);overflow:auto}.miniapp-popover:before{display:none}}@media(prefers-reduced-motion:reduce){.use-trigger,.use-trigger i,.miniapp-popover{transition:none}}